
Alexander S. answered 05/26/19
3rd Year NYU Filmmaker with Years of Prior Experience
This is a great question, and since Kubrick is infamous for not answering questions about his films we can only speculate. There are many possibilities:
- they hid a breathing device somewhere within the trough for Malcolm McDowell
- Malcolm McDowell was trained before this shot in holding his breath underwater by professionals
- they really just tortured Malcolm McDowell and maybe had a safe word? Lol
Either way a very impressive scene and one that makes the viewer cringe due to its high level of realism. I, for one, hope that McDowell had a breathing device somewhere in that trough, but I wouldn't put the others past Kubrick...