Seedance 2.5 Passenger Films Ocean Anomaly Cinematic Realistic Prompt

Create a 30-second ultra-photorealistic smartphone video recorded by a passenger looking out of an airplane window during a normal daytime flight.\n\nThe footage must look completely authentic and accidental: handheld phone camera, imperfect framing, slight window reflections, subtle autofocus changes, realistic airplane vibration, natural exposure, compression, ordinary clouds and realistic atmospheric haze.\n\nSTRUCTURE:\n\n0–9 SECONDS — ORDINARY\nThe passenger casually films the view outside the airplane window. Blue sky, layers of clouds and ocean far below. The airplane wing is partially visible. Everything looks completely normal and boring.\n\n9–14 SECONDS — SLIGHTLY STRANGE\nSomething unusual becomes visible far below through a gap in the clouds.\n\nAt first it looks like an unusual circular patch in the ocean.\n\nThe person filming slowly tilts and zooms the phone toward it.\n\n14–21 SECONDS — WTF\nAs the camera zooms in, the circular area becomes clearer.\n\nSomething enormous appears to be moving beneath the surface.\n\nDo NOT clearly reveal what it is.\n\nFor a brief moment, the water reveals the outline of an enormous perfectly geometric structure beneath the ocean, far too large to be a normal ship or island.\n\nThe passenger becomes increasingly confused and instinctively adjusts the phone framing.\n\n21–27 SECONDS — IMPOSSIBLE\nThe clouds begin moving across the view.\n\nJust before the object disappears behind the clouds, a huge section of the underwater structure subtly moves.\n\nThe movement must make the viewer realize this isn't an island or geological formation.\n\nIt is something enormous beneath the ocean.\n\nThe passenger quietly says, naturally and uncertainly:\n\n“What the hell is that?”\n\nNo dramatic acting.\n\n27–30 SECONDS — CUT\nThe clouds completely obscure the view.\n\nThe passenger tries to reposition the camera, but the video abruptly ends.\n\nMake the anomaly extremely difficult to identify at first. The viewer should initially think they are watching ordinary airplane footage.\n\nCRITICAL REALISM:\nNo cinematic color grading, no fantasy lighting, no giant obvious monster, no science-fiction aesthetic, no exaggerated VFX. Everything should look like authentic phone footage someone accidentally captured from an airplane.\n\nThe viewer's progression should feel like:\n‑Nice clouds.‑\n→ ‑Wait, what's that?‑\n→ ‑Is that something underwater?‑\n→ ‑That can't be real.‑\n→ replay.\n\nNo subtitles, no explanatory text, no music.