Continuity mistake: When Brandon is talking to his sister Shannon about the car photos, the clock goes from 11:50 to 11:40 and back to 11:50. (00:25:37)
Continuity mistake: The clock in the kitchen (opposite the room where Brandon was sitting) was inconsistent, going from 7:20 to 12:22 to 12:25 then to 11:29 (AM) during the short time Rebecca was talking to Mr. Hill. (00:04:40 - 00:05:24)
Continuity mistake: Across the week or so of the movie, filming obviously took place without regard to what season the foliage represented. Within less than 4 minutes of screen time, summer tree foliage in DC was just starting to turn orange on top, followed by an aerial view that was more fall-like. Shifting to one week earlier in warmer Arkansas, the trees were bare (winter) outside Rebecca's door - but not when Taylor turned around to leave. The trees were summer seconds later when Martin was talking to Ayisha. (00:02:03 - 00:05:41)