One of the most remarkable film sequences involved one seamless take during which Johnny Depp and Christopher Walken board a glass-walled elevator and ride 35 floors to the top of L.A.'s Bonaventure hotel. Crammed into the confines of the elevator with the actors were director John Badham, cinematographer Roy H. Wagner, focus-puller Todd Slyapich, sound mixer Willie D. Burton, boom operator Marvin E. Lewis and script supervisor Barbara Thaxton. Given the fact that the elevator was glass from top to bottom, was lit by 8 Kino Flo lamps, ensuring that camera and crew reflections were not captured on film was quite an exercise in and of itself.
When Watson pulls the Governor's picture from the envelope, we can see through the photo, revealing that the face is visible to him. In the next shot, Watson starts pulling when only the hairline is visible.
Huey actually blows his cover for pretending to be deaf in front of Mr. Smith, and gets away with it. When Smith tells Huey that he remembers a shoe shine to cost two bits, Huey responds with a head nod and a slight grunt.