While filming the scene in the bar where Carl runs into a waitress and falls on his back, Jim Carrey did the stunt incorrectly, fell to the floor harder than he expected, and broke three ribs in the process.
Based on an autobiographical book written by Danny Wallace, a British author, producer, and journalist who spent a year answering "yes" to any given question or proposal, and recording the results.
Jim Carrey's bungee jump stunt was the final scene filmed, but not before it caused many problems for the insurance company and the producers, due to his insistence of performing the stunt himself. The insurance company was not willing to underwrite a premium for a lead actor over a stunt double. Finally, an agreement was reached between both parties, with the producers assuring two things to the company: the stunt to be performed after filming technically ended; and the scene could only be filmed once. Eight cameras were used to film the stunt, and Carrey performed it uninjured.
One of the most terrifying shots for Jim Carrey was the one with the dog in front of him after saying "no" for the first time after attending the seminar. The rope actually broke several times during filming.
Jim Carrey declined an upfront salary for this film. Instead he was paid 36.2 percent of the film's profits.
Danny Wallace: The writer of the book upon which the film was based can be seen sitting at the bar during the wedding shower.