Continuity mistake: Many editing mistakes with the 'accidents' including the guy at the weight set, when his ribs crack through his skin. In the following shot all is normal again.
Continuity mistake: When Chris has a gun aimed at Evelyn he's holding it with his right hand. A shot behind him and suddenly it's in his left hand.
Revealing mistake: Clearly not Susan Blakely when she goes topless. Her hair suddenly becomes curlier, that's a body double.
Continuity mistake: Michael Manfield (Danny Pope) walked to the Phillips' house for the in-house music presentations, but on his way home when he was sitting by the lake, his bicycle was on the ground. There was no indication that he had gone home first - he was throwing away the hat he took from Lorna's room, and he was still wearing a tie. (00:38:51 - 00:42:52)