The Aviator (2004)

Continuity mistake: Near the beginning of the film where Howard Hughes flight tests the silver monoplane (the H-1), the close up shots show an open cockpit while the longer shots show a closed cockpit.

Ava Gardner: You listened to my phone calls?
Howard Hughes: No! No! No! Honey I would never do that! I'd never do that! I... I just read the transcripts, that's all.

Question: When Hughes is scrubbing his hands so hard that he cuts them, what exactly causes them to be cut? Is it something in the soap, or his fingernails? I wouldn't think, his being a man, that his nails would be long enough to do any damage, at least not to the extent shown.

Krista