Quick answer: Cinematic sequences have their own bug class (timing, audio sync, scripted events). Cinematic-focused bashes with the cinematic team surface them.
Cinematic bugs are different from gameplay bugs. Test them separately.
One full play-through
Bash watches each cinematic in full. Misses missed details surface.
Audio focus pass
Headphones; quiet room; listen for sync issues, missing cues.
Skip behavior
Player skips during; verify state remains correct.
Cross-cinematic transitions
Cinematic A to gameplay to cinematic B; state should match.
“Cinematics have unique bug surfaces. Specialized bashes find specialized bugs.”
If your game has many cinematics, the focused bash is one-time per release.