Continuity mistake: When Fletch and Stanwyk first meet and Stanwyk asks Fletch to come to his home and hear his proposal, Stanwyk is wearing a suit/tie on top but is wearing jeans on the bottom. In the next wide shot as they leave the beach, and again in the next scene as they arrive at Stanwyk's house, he is wearing suit pants. (00:04:50)
Suggested correction: Stanwyck is never wearing jeans in any of the scenes, he's always wearing matching suit pants.
Factual error: In the culminating scene where Fletch is held at gun point and escapes by turning on the gas valve in the fireplace and then igniting the vapors into a ball of flame, he actually turns the valve into the off position (valve is perpendicular to the pipe). (01:32:00)
Suggested correction: The valve was in closed position (perpendicular). He opened the valve (turned parallel to pipe).
