Continuity mistake: The mole by Christian Bale's eye switches sides when he's in the oasis near the start, presumably a flipped shot.
Continuity mistake: At the wedding, Christine tells Stephen something quite hurtful; wide-eyed, he asks her how long did she have it in the barrel; a black partygoer walks behind him but is gone in the reverse shot. Moreover, she replies "Long time" and a couple walks past her, only to walk again past Stephen in the next shot.
Continuity mistake: Ishmael shots Karim in the right side of the stomach, but the wound moves to the left side.
Continuity mistake: The orange feather toy that was in the cat bed with the cat when Sam got to the bookstore was not there a couple camera shifts later. (00:25:33 - 00:26:25)
Continuity mistake: During their first encounter (the first we see in the movie, at least), Sheila sits next to Gary, and they both order Old Fashioned. Phil the Bartender makes a comment on that, and she shoos him off. Look at Kaley Cuoco 's bag; one of the straps keeps going on/off the top of the bag between shots. (00:03:30)
Continuity mistake: When the waiter puts Lily's "Cleopatra Special" plate in front of her, the long, white, curved ingredients (bean sprouts?) stick upward across her plate, but none are visible or sticking out in alternating views of her plate. (00:08:30)