Continuity mistake: When Jules and Nic are in bed, about to watch a porn movie, Nic's chin rests on her arm or is away from it, depending on the angle.
Continuity mistake: After the shootout at Sarah's birthday party, White Mike is visited at the hospital by Molly. Mike's pillow has marking "Property of Queens Hospital", they cut to Molly, then back to Mike, and the marking is gone. Regardless, they were in Manhattan, they would not have taken him to Queens Hospital anyway.
Continuity mistake: When Stern is cutting Gutterman loose and they're at Rachel's desk, Gutterman is right behind Stern, close enough to touch the desk and sets his hat on it. The shot changes and Gutterman is now further away, not even in arm's reach of the desk.
Continuity mistake: When the two young lads jump off the bridge to escape in handcuffs, as they fall together the handcuffs disappear. (01:12:00 - 01:13:00)
Continuity mistake: At the end of the film, Johnny is shown driving onto the freeway northbound from Hollywood, then shows him in Calabasas, and then Thousand Oaks. That route takes him in a westbound direction, however, the section of freeway he's on in Calabasas is going eastbound (not westbound like he should be). Next, in Thousand Oaks, he's properly going westbound again.
Continuity mistake: The little Nono is singing the nursery rhyme in front of the cafè. One of the nazis tosses him a coin, while the other puts the cigarette down, but at the cut he's already taking a puff.
Continuity mistake: When Charlotte Gainsborough has a meltdown telling the younger kid to remove the toy guitar, the kid is holding the toy differently between shots. (00:17:20)
Continuity mistake: Jason spits blood onto Joker's chin which changes spot wise and shape wise by the next shot.