Continuity mistake: After the boys kidnap Rex Hanson and Rex proposes that they join forces to escalate the caper, Rex repeatedly bangs his own face into a desktop, resulting in a prominent bruise on his right cheek. Over the next several scenes, Rex's bruise changes shades several times, from dark red to faint brown and back to red, and then vanishes entirely, all within the course of one day.
Charles Austin Miller
30th Nov 2015