While shooting scenes in the butcher shop, Nancy Travis was distracted by Mike Myers's antics and accidentally cut off the tip of her middle finger on her left hand when chopping vegetables with a kitchen knife. Travis kept shouting "Cut! Cut! Cut!" which she meant literally, although the crew initially thought she was referring to the term for stopping the shooting of a scene. A local doctor sewed it back on.
The moment where Tony laughs at Stuart's Colonel Sanders impression was not scripted. Anthony LaPaglia really did lose control and laughed at Mike Myers.
When Harriet takes the wedding rings out of the talcum powder, you can see a bandage on the middle finger of her left hand. This was the same finger that she had cut during the butcher shop scene while being distracted due to her laughing at the ridiculous antics of Mike Myers.
Mike Myers extensively rewrote the script with writer Neil Mullarkey, an old friend from Britain. According to Myers, they changed the story and many of the comedic moments. Robbie Fox was asked to consider a new set of credits that gave him a "story by" and co-screenplay credit. He rejected the proposal and in arbitration, the Writers Guild of America decided that Fox would receive sole screenwriting credit. Producer Robert N. Fried and Myers were upset that Mullarkey, who put a lot of work into the script, did not get any credit.