Goofs

The lunch time pool scene at Sean's place. The shadows constantly change as the scene continues. The start has radiant sunlight showering Diane and Sean. As the camera cuts to a different angle, they are covered in shade. Move back to the original angle, all sun again. Continues for a while until the end of the scene. The same can be noticed on the water of the pool. First shot shows it bathed in sun. As Bonnie gets out of the pool, it is mostly shade.

During the pool scene at Sean's house, when he is pushed into the pool, water splashes onto the camera lens. For the rest of the shot, it is apparent when focus on the lens is changed because the drops rotate around the center of the shot.

Sean's mother gets in her car to drive the few houses down the street to visit her son's teacher. Gas prices really must have been cheap back in the 1970s.

In the scene where Diane twirls her umbrella in the bedroom, a crew member can briefly be spotted in the mirror.