At the store Christmas party, the white liquid in the pitcher changes while being poured.
Jesse's scar keeps changing color as the movie wears on. Starts out like a brown dried scar, then changes to bright red at other times.
When Jesse is talking with his father in the bedroom, his arm position changes between shots.
Marines don't travel or go out in public in their camouflage utilities, nor would they travel unshaven (even wearing the correct uniform).
Sarah claims that Mr. Kravitz "offered Brian Donaldson and I" a job in New York. Correct grammar: "offered Brian Donaldson and me".