Visible crew/equipment: When Michelle is at the dinner she asks Topper for a light and strikes it on her leg. As she starts to move her leg, you can see the black strip on her leg to light the match. (00:27:30)
Revealing mistake: When Walters is electrocuted, the kettle on his head is not resting on it but is fixed on the grid behind him, as to prevent it from falling off. Since Walters moves his head slightly, so should the kettle.
President Benson: Cookie?
Col. Walters: No, thank you, sir.
President Benson: Young lady?
Michelle Huddleston: No, thank you, sir.
President Benson: No, I was just offering him a young lady.