Continuity mistake: When the Angels find the photos on Emmet's body at the coal bowl, the picture of Helen Zaas shows her holding her Lucky lighter. If you look closely, you can see that it is completely different to the Lucky lighter which Dylan carries. The stars part of the 'Stars and Stripes' design cover the whole lid on Dylan's lighter, but on Helen Zaas's lighter it only covers half of the lid. (00:59:50)
Factual error: Before Cameron goes surfing the girls mention that there's a hurricane off the coast causing good waves. There are no hurricanes in the Pacific Ocean, only typhoons.
Factual error: When Lucy L. is using the gas pipe as a flamethrower, it is suddenly turned off afterward. This could be because of one of the other characters turning the handle, but if they turned it off in that way (or any way), the flame would go inside the tube and make the tank blow up. (00:58:40)
Continuity mistake: When the Angels are at the races Natalie wiggles her head at a man and streches her arms out. Then it cuts to the man and behind him is a man on a bike jumping off a ramp and he is in mid-air. It then cuts to Natalie, then to the man again and the same man behind him jumping off the ramp, has only just began to jump. (00:30:25)
Continuity mistake: When Dylan leaves the Angels, she returns the stuff that she has borrowed throughout the years. This includes a letter. Look carefully at the position of the writing on the letter. When Natalie and Alex find the box just after, the writing is upside down.
Continuity mistake: When the Angels are fighting the gunmen on top of the Los Angelos Theatre, several bullets shatter the sign lights. But when the bombs explode, there are no smashed lights. (01:27:15 - 01:30:50)
Revealing mistake: When you see the picture of Alex and her parents in front of the Eiffel Tower, her face has obviously just been added into the photo, which is shown because the lighting is different and she is wearing the same top as she was when she was in the office with the Angels, talking to Max. (00:43:55)
Continuity mistake: When Madison Lee is at the top of that dome after she shoots Carter, she says "You know, I never really got that whole partner thing" and she has nude lips, then she comes down and she is answering Alex's question "Why?" and she has red lip gloss on. (01:14:50)
Continuity mistake: When the Angels are going to talk to mother superior, they all have on some sort of lip gloss/stick, but when they are at the desks, they all have plain lips, then when they are leaving, they all have the same lip gloss they had when they were coming. (00:41:30)
Continuity mistake: When the bombs go off on top of the rooftop, Madison's telescope has disappeared.