When Catherine deletes Alex's voicemail from the reporter's phone, we can see her naked finger but when she bags it, she is using latex gloves.
At the bar, Joe comes over to talk to Tess. Catherine gets up to go talk to Evan. While Joe and Tess are talking, you can see Catherine in the background speaking to Evan. However, in the next shot, Catherine is still walking up to Evan to begin their conversation.
When Catherine is in the middle of the street performers, the coat worn by one of the older dancing women changes from brown to black and back again between shots.