Continuity mistake: When Frank jumps off the rooftop and throws a cop to the water, his hat swaps from being on the right to on the left.
Visible crew/equipment: While Frank is on the rooftops, when Elise stares at him there's a huge crowd of people on the right watching the filming.
Continuity mistake: Foursome dining behind Elise and Tupelo in scene on train: the amount of water in the girl's (in the black dress) glass changes too much too quickly. There isn't enough time in between shots.