Revealing mistake: In the letter to Mike Gallagher attached to the newspaper, subscription is misspelled. Sally Field is a reporter, so she should have caught that. (01:19:43)
Continuity mistake: When Gallagher (Paul Newman) stops at the traffic light and gets out and runs back to cops that are tailing him, he passes a Triumph TR7 convertible that has stopped behind his car. A large man is driving that Triumph. When the camera angle changes as Gallagher runs back to his car, the Triumph is empty - you can see its full, unobstructed windshield. (00:47:00)
Continuity mistake: When Megan meets with Teresa in the park, Megan says "It's 1981", but when Gallagher later buys a cashier's check at a bank, the date is 1980. (00:54:00 - 01:08:00)
