Continuity mistake: When Greg Kinnear is punching Harrison Ford he hits FordĀ“s shoulder, but Harrison Ford is taking his hand up to his face like he was being hit there.
Continuity mistake: When David and Sabrina are dancing at his mother's party, the hair falling on the right side of her forehead changes as they start and dance on. (00:25:00)
Continuity mistake: When Linus keeps David's appointment with Sabrina in the solarium - David had two champagne flutes in his back pockets and he sat down. He pours her a glass of champagne, and it is half-filled with froth, but when Sabrina takes the glass, all the froth is gone and the glass is nearly full.