Visible crew/equipment: When Howard arrives at the Motion Picture Association's reunion to discuss censorship in movies, the camera's shadow is visible on the wall on the left while moving backwards once Howard enters from the main door. (01:05:20)
Visible crew/equipment: Lighting screens are reflected in Hepburn's glasses while she's in the car heading to the set.
Visible crew/equipment: When Hughes is flying the new and faster airplane, you can see the filming crew reflected in the side of the plane. You can see it at full speed but you can see it better if you slow playback down a bit.
Chosen answer: Hughes has obsessive compulsive disorder. He washes his hands so often, and so intensely, that he's literally worn away his skin. This is common with OCD sufferers.