Continuity mistake: The main character is chatting with Harper at the shooting range. Harper's earbuds and protective goggles change position between shots throughout the scene. (00:08:50)
Continuity mistake: In a second view at a different angle of the bank employee being shot, one of the doors that was shattered in the original shot is not shattered in the second shot. (00:03:02)
Continuity mistake: The chef at the airport stabs someone, but the knife blade is clean afterwards; moments later he stabs it through the valise, and it is covered in blood.
Continuity mistake: Throughout the movie, fire axes seem to be the weapons of choice. Only two fire axes are used, but they appear recurrently. In the very first use, the protagonists grab fire axes to butcher the monster called Beverly. Blood and gore go everywhere; yet, the axes emerge from this bloodbath with no blood or gore on the handles - they're virtually pristine moments later. The axes are used again and again, right up to the ending, and blood comes and goes from the axe handles seemingly at random.
Continuity mistake: During the flashback, where Sienna plays a search game with Zobrist in his office, her knitted coat is off her shoulders, on her shoulders, and off again. (01:20:00)
Continuity mistake: Walter tore out the newspaper article ("Body of Woman Found at Greenland Rest Stop") fairly neatly/evenly; it was relatively straight across the top, though a little jagged as could be expected. When Walter looked at the article some time later, the jagged top was worse and there was MORE space between it and the title. The right side also appeared to be more jagged than it was and include a little more of the article that was to its right before being torn off. (00:07:03 - 00:13:37)
Continuity mistake: Maureen spent the first night in the spooky house, without conclusive results. They are meeting the prospect buyers in a bar. When Lara walks up to them and begins the conversation, the arm position of the man changes wildly between shots several times at every cut. (00:08:40)
Continuity mistake: Mikey dropped the wristwatch Andrew gave him and it landed face down with the bands upward. When Mikey jumped off the rock to retrieve it, the watch's face was on its side (visible to the screen) and the bands were parallel to the ground. (00:05:04)
Continuity mistake: As the guy is being strangled and going up the tree his hat changes positions. (01:12:30 - 01:30:00)
Continuity mistake: Mike and Tommy at the beginning of the movie are in the desert and have been staring at nothing for 3 months and 6 days. When Mike says this precise amount of time, and earlier when he asks "What's your point, Tommy?" the lid of his scope flaps in the wind. In the rest of the scene it stays still. (00:02:20)
Continuity mistake: Michelle Rodriguez goes back and forth using the character of Frank's voice to using her own natural voice.
Continuity mistake: After watching the bike dare, Sidney turns and walks out of the room and her phone is in her back pocket. When she arrives in the next room she takes her phone off charge. (00:46:00)