When Lyn and Jed get photographed in the bar by the camera lady, she snaps only one picture of them. When she brings the novelty items (handkerchief, matchbook, ashtray, and postcard) to their booth minutes later, the handkerchief shows a different pose than the others - Lyn's arm is extended, and there is no shadow across Jed's face. Additionally, neither of the poses on the items reflects the actual pose of the couple when the picture was taken.
When Eddie is hiding in the closet, Nell locks him in. Hotel closet doors don't have locks.
Eddie brings two bottles of Coke up to the room where Nell is. When he opens and pours the Coke in to the glasses, there is no fizz visible at all. The soda is flat.