When Julian is tearing his Mercedes apart to locate the stolen jewels, he is seen pulling the plastic off the driver's door to get a torch. He pulls the plastic right off the door, but shortly after that, the plastic is on the door.
When Julian and Anne are talking on the beach, the positions of the sun and shadows on them change between shots, indicating that the shots were taken at different times.
When Michelle and Julian are talking in the botanical garden, she tells him that she's going away for two months and tells him to blame Charles for her trip. At that point, Julian says, "That's not what I'm saying," leans against a tree and messes his hair up. In the next shot, after he's walked away from the tree, his hair is neat.
During the questioning at the police headquarters, Julian's right hand is by the side of his head. In the next shot, his hand is on his leg.
At the hotel bar, when Julian and Michelle are talking, he is looking at her when she tells him that she used to travel a lot. In the next shot, when she tells him that her husband is involved in local politics, Julian is seen turning his head to look up at Michelle.
At Perino's, when Julian and Anne are talking, Julian says to Anne, "Excuse me, I'll be back in a second," but his lip movements don't match what he's saying.
At 17:12, the helicopter carrying the camera is clearly reflected just above the right rear wheel of the Mercedes.
When Julian and Michelle are having a conversation at his apartment, he tells her about the Palm Springs murder for which he is being framed. He tells her that it took place a couple of weeks ago. A short time later, she asks him when the murder took place, he tells her it was a week ago Tuesday.
This is repeated later on by Charles (the senator) when he's talking to Julian, but the Tuesday part is omitted.
At the 1h51m mark, when Michelle goes in to talk to Lieutenant Cruz, you can see a reflection of the boom mic in the dark window.
When Julian Kay is talking to Jill on the phone to see if he has any messages, he is told that Michelle has left him one. Shortly after that, he says to Jill, "Tell her to meet me at Perino's," but instead of telling Jill to let Michelle know what to time to meet him there, he puts the phone down. (The shot then goes to Julian walking to Perino's in the evening to meet Anne, and Michelle is seen at a table opposite.)