Continuity mistake: In the restaurant scene where Conrad is sitting opposite Karen, the position of the drink glass in front of Conrad changes as the camera angle moves from Conrad's back facing Karen to Karen's back facing Conrad.
Continuity mistake: When Conrad visits Dr. Berger's office for the first time, and he is in the elevator, his hair changes length and style between shots.
Other mistake: At the beginning, when Conrad drives with his friends, one of them takes his head out of the window and says, "I need to Jump". The kid next to him is mouthing his lines.
Continuity mistake: When Conrad is at the swim meet, he has on a red plaid shirt under a gray sweater. When he arrives back at his grandmother's house, he has a white with thin blue stripes shirt and a beige sweater, and there is nothing to indicate that he stopped along the way.
Continuity mistake: When Karen goes to leave the restaurant, the Cokes have suddenly disappeared from the table.
Continuity mistake: In the restaurant scene where Calvin is sitting opposite his wife Beth and trying to persuade her to meet with Conrad's psychiatrist, the ashtray in the center of the table appears and disappears as the camera angle moves from Beth's back facing Calvin to Calvin's back facing Beth.
Continuity mistake: During the restaurant scene, the straw in Karen's hands starts unwrapped, then becomes wrapped, and then suddenly jumps into the Coke.
Revealing mistake: In the scene at the golf course, Mary Tyler Moore and Donald Sutherland are supposedly putting out on the 18 green. If you look carefully, you'll see more than one hole cut in the green. They're actually on the practice putting green.
Continuity mistake: In the restaurant scene, the amount of Coke in Karen's glass changes during the cuts back and forth, between her and Conrad.