Camera move planned in Blender.
Executed by Seedance.

Cinematic film still, tight close-up portrait of a male boxer, about thirty, light-brown skin, shaved head, short black beard, a small old scar through the left eyebrow, calm unreadable face, heavy-lidded dark eyes looking just past the lens. Head and shoulders, the black hood of a cotton hoodie framing the face, a hint of white hand wrap at the bottom edge of the frame. Flat neutral mid-grey studio backdrop. Single soft key light from camera left at a 2:1 ratio, gentle falloff into the shadow side of the face, a thin cool rim along the right cheek and jaw. Clean dry skin with natural pores, fine stubble texture, a faint sheen on the forehead. Palette of 60% neutral grey, 30% deep charcoal, 10% warm skin tone. Photorealistic ARRI Alexa LF with a Cooke S4 prime at T2.0, shallow focus locked on the eyes, organic 35mm film grain, cinematic film still aesthetic.

Three studio photographs of the same male boxer arranged side by side on a flat neutral mid-grey studio backdrop, a film character sheet: full-body front photo on the left, full-body back photo in the middle, close-up portrait photo on the right, the same real person in all three, consistent across panels. Soft directional cinematic studio lighting from one side, gentle natural shadow falloff, clean neutral cinematic look.

The boxer: about thirty, light-brown skin, shaved head, short black beard, a small old scar through the left eyebrow, calm unreadable face, heavy-lidded dark eyes, broad shoulders, lean muscular build.

Wardrobe, consistent in all panels: black cotton hoodie with the hood up, black satin boxing shorts with a plain black waistband, white cloth hand wraps over both hands and wrists, black low-cut boxing boots with white laces.

On the left panel the boxer stands straight facing the camera in a neutral pose, arms relaxed at the sides, wrapped hands open, full figure head to feet. In the middle panel the same standing pose is seen from behind, the hood up, the shoulders square. On the right panel a close-up head-and-shoulders portrait, the face calm, eyes on the lens, the hood framing the face.

Palette of 60% neutral grey, 30% deep black fabric, 10% warm skin tone. Shot on ARRI Alexa Mini LF with a Signature Prime, clean modern digital cinematic capture, crisp natural detail, minimal fine grain, natural living skin tones.

Eye-level three-quarter wide shot from a corner, two walls visible: a clean old-school boxing gym in a windowless basement at night. A flat closed ceiling of dark-painted timber joists, eight identical heavy bags in smooth matte black leather hanging from short chains at one even height in a loose ring around an open centre of swept floor, plain painted concrete-block walls in one flat steel-grey tone, bare and tidy, a smooth dark hardwood floor with a satin finish, one speed bag platform on the right wall. A row of caged fluorescent tubes along the ceiling gives even cool overhead light, every wall and every bag readable, soft open shadows; one bare tungsten bulb in a green enamel shade hangs low over the open centre as the warm accent. Empty gym, still air. Night interior exposed one stop under, deep but open blacks, the lamps the brightest things in frame. Palette of 60% deep charcoal and steel blue, 30% cold concrete grey, 10% warm tungsten amber from the green-shade bulb. Photorealistic cinematic film still, organic 35mm film grain, Roger Deakins naturalism. STRONG anamorphic lens character: horizontal squeeze and compression, oval elliptical bokeh, horizontally stretched highlights, cat-eye at the frame edges, subtle chromatic aberration toward the edges. NO lens flares, NO light streaks, NO floating bokeh circles.

Eye-level three-quarter medium-wide shot from a corner, two walls visible: a plain athlete recovery room in a windowless basement under an arena, flat closed ceiling. At centre a rectangular cold plunge tub the size of a bathtub, matte black composite shell with crisp edges, a brushed stainless steel basin inside, a small cold-blue digital temperature readout on the end panel showing '3.0', clear still water with a scatter of floating ice pieces and thin cold mist on the surface. Walls of plain mid-grey ceramic tiles up to shoulder height with painted concrete in one flat tone above, a dark grey anti-slip tile floor with a square steel drain, a simple steel bench against the wall with one folded dark grey towel, a plain steel door. One industrial LED batten light on the ceiling above the tub as the cool key, one warm tungsten wall lamp over the door. Empty room, still air. Night interior exposed two and a half stops under, crushed blacks, the brightest thing in frame is the batten light, one single cold rim. Palette of 60% deep charcoal and steel blue, 30% cold concrete grey, 10% warm tungsten amber from the wall lamp. Photorealistic cinematic film still, organic 35mm film grain, Roger Deakins naturalism. STRONG anamorphic lens character: horizontal squeeze and compression, oval elliptical bokeh, horizontally stretched highlights, cat-eye at the frame edges, subtle chromatic aberration toward the edges. NO lens flares, NO light streaks, NO floating bokeh circles.

REFERENCES (ranked)
@Video 1 (20 s, 1920x1080, 24 fps) = the greybox blocking previz. SOLE authority for camera height, camera speed, easing, framing, tilt and timing, and for the position and scale of every figure and set piece at every moment. The camera moves straight up on one vertical line for all 20 seconds and never pans, orbits or travels sideways. Whenever the frame goes black for a split second (at 4.0, 8.0, 12.0 and 16.0 s) the camera is passing through a floor into the NEXT level, never back to a previous one. The red box IS the boxer in every level: on level 0, 1 and 3 he is @char_FN_boxer1, on level 2 he is @char_FN_boxer_bath, on level 4 he is @char_FN_boxer_ring. The cyan box is the trainer on level 0, the coach on level 2 and 3, the trainer outside the ropes on level 4. Grey boxes are crew members. The black box with four cylinders on level 0 is the SUV. The dark hanging cylinders on level 1 are heavy bags. The grey block on level 2 is the ice tub. The light platform with the thin white lines on level 4 is the ring with its ropes; the dark tiers with small grey boxes are the stands with the crowd. Every black-and-white checkerboard surface becomes the real floor or ground of the level that is active at that moment. Nothing else is inherited from @Video 1: no material, no colour, no light.
@loc_FN_arena_back = the rear of a sports arena at night: board-formed concrete wall, raised loading dock, a steel roller door open with warm tungsten light spilling onto wet black asphalt, chain-link fence and sodium lamps, one unbranded black full-size SUV. DESIGN reference only: materials, palette, practicals, mood. Do not copy its camera angle or framing. Active 0.0 to 4.0 s only.
@loc_FN_gym = a clean old-school boxing gym in a windowless basement at night: identical matte black heavy bags on chains at one height, plain steel-grey block walls, dark hardwood floor, a row of caged fluorescent tubes overhead, one bare tungsten bulb in a green enamel shade over the centre. DESIGN reference only. Active 4.0 to 8.0 s only.
@loc_FN_icebath = a plain recovery room under the arena: mid-grey ceramic tiles to shoulder height with painted concrete above, a rectangular matte black cold plunge tub with a brushed stainless steel basin, still water with floating ice, a square steel drain in the floor, one industrial LED batten light overhead and a warm tungsten wall lamp over the steel door. DESIGN reference only. Active 8.0 to 12.0 s only.
@loc_FN_warmup = a concrete-block warm-up room under the arena: painted grey blocks, a long mirror on one wall, black rubber floor with white tape lines, a steel bench with towels, a caged fluorescent tube overhead. DESIGN reference only. Active 12.0 to 16.0 s only.
@loc_FN_ring = a boxing ring at the centre of a dark arena: white canvas, plain black corner pads, four white ropes per side, a black lighting truss with hard white fixtures directly above the ring, thin haze in the beams, the crowd as dark silhouettes fading into blackness. DESIGN reference only. Active 16.0 to 20.0 s only.
@char_FN_boxer1 = male boxer, about thirty, light-brown skin, shaved head, short black beard, a small old scar through the left eyebrow, calm unreadable face; black cotton hoodie with the hood up, black satin boxing shorts with a plain waistband, white cloth hand wraps. Identity and wardrobe ONLY, 100% matches the reference; no pose, camera or background from the sheet. It is one man, not three. Active 0.0 to 8.0 s and 12.0 to 16.0 s.
@char_FN_boxer_bath = the same man, shirtless and wet, hand wraps off, black shorts, skin flushed from cold water. Identity ONLY, 100% matches the reference. It is one man, not three. Active 8.0 to 12.0 s.
@char_FN_boxer_ring = the same man in a black hooded satin ring robe over a bare torso, hood up, black satin shorts, black leather boxing gloves over white wraps. Identity and wardrobe ONLY, 100% matches the reference. It is one man, not three. Active 16.0 to 20.0 s.
The trainer / coach (no image reference, from this text only, the SAME man on levels 0, 2, 3 and 4) = male, about fifty-five, heavy build, dark-brown skin, close-cropped grey hair, grey stubble, deep lines around the eyes; black zip-up track jacket with a plain collar, black track pants, white trainers, a white towel over his left shoulder on every level. Crew members and the crowd carry no fixed look.

LOCKS
@Video 1 is the SOLE authority for camera movement, cuts and timing, 1:1 frame-aligned. If this text and the video disagree, the video wins. The previz is re-dressed, never re-imagined.
The camera only rises. No pan, no orbit, no push-in, no lateral travel anywhere in the 20 seconds. On every level it shoots up out of the floor fast, settles to a slow cruise at the boxer's height, and shoots up fast again through the ceiling; the exact speed at every moment comes from @Video 1.
Exactly FIVE levels, each appearing exactly once, in this order: 1) arena back entrance 0.0 to 4.0, 2) gym 4.0 to 8.0, 3) ice bath room 8.0 to 12.0, 4) warm-up room 12.0 to 16.0, 5) ring 16.0 to 20.0. No level repeats. Each black dip is a doorway forward.
Exactly ONE boxer in the whole film, the same man in every level, rendered from the reference named for that level. No second boxer, no duplicate, no half-body at the frame edges.
Level 0: exactly one SUV, one trainer, three crew members, no other vehicle, no other people. Level 1: the boxer alone. Level 2: the boxer and one coach. Level 3: the boxer and eight people standing in a circle around him, one of them the coach. Level 4: the boxer alone inside the ropes, one trainer outside the ropes on the floor, the crowd only as dark seated silhouettes beyond the ring light.
Steam rises only from the ice water and the boxer's breath on level 2 and stays over the tub. Haze exists only inside the light beams on level 4. Nothing else smokes or steams.
Nobody looks at the lens at any time, with ONE exception: the boxer on level 4 from 18.5 s to 20.0 s.
These locks hold for the full 0 to 20 s.