Continuity mistake: When Allie takes a photo of the "perfect roomate", the roomate's pose in the photo doesn't match her pose and position at the time taken.
Single White Female (1992)
Directed by: Barbet Schroeder
Starring: Jennifer Jason Leigh, Bridget Fonda, Steven Weber, Peter Friedman
Audio problem: When Sam is trying to win back Allie's love, his mouth does not move while he's talking and rubbing her neck.
Continuity mistake: When Heddy leaves the shower nude after assaulting Graham, she wraps a towel around herself while talking to Allie. She walks into the bedroom with Allie following her in talking, and in the next interior bedroom shot, Heddy is instantaneously wearing a robe over a nightgown.
Question: Why didn't the police come looking for Allie in Graham's apartment? Some detectives should've been looking for her since Sam died early that morning.
Question: What exactly was wrong with Hedy? What made her so messed up?
Answer: Hedy's twin sister drowned when she was a child. She's trying to reform that bond with Allie.
Answer: Because his body hadn't been found yet, It was still early in the morning.
Of course, his body had been found - it was all over the news.