Continuity mistake: When Cal and Emily are sitting in the classroom whilst attending Robbie's Parent/Teacher meeting, when the teacher initially writes the word 'asshole' on the board, it appears to be written differently on three separate occasions during the same scene. (00:59:40)
Other mistake: Jacob takes Cal shopping. In the shot during which Jacob says to Cal "the skin under your eyes is starting to look like Hugh Hefner's ball sack," the film is flipped and the viewer is watching a reverse (or mirror) image. This is revealed principally by the fact that the emblem on Cal's Polo shirt is on the right side of his chest as opposed to his left.
Continuity mistake: When Jessica takes the pics in her bedroom and prints one, the bed is on the wrong side.
