What movie has the longest title?

Biggirl,

You’re two Mads too many.

Another English-language in the Guinness top 10: Those Magnificent Men in Their Flying Machines, or How I Flew from London to Paris in 25 hours 11 minutes

It’s a Mad Mad Mad Mad World (1963)

Four.

The Motion Micture Passocation of America?

Don’t forget The Fearless Vampire Killers or Pardon Me, But Your Teeth Are In My Neck.

Sorry. I should have linked to the imdb page. It lists The Mysterious Yearning […] Mr. Ripley as the complete U.S. title.

MPAA :smack:
Another thing is that studios will also register many names for a movie to keep their options open. So then the film could have been released as The Mysterious Mr. Ripely* or The Secretive Mr. Ripely or whatever tested best at a later date.

None of the adaptations of Moll Flanders have used the title in its entirety, otherwise they’d win with

The Fortunes and Misfortunes of the Famous Moll Flanders Who Was Born in Newgate and During a Life of Continued Variety for Threescore Years Besides Her Childhood, was Twelve Year a Whore, Five Times a Wife, Twelve Year a Thief, Eight Year a Transported Felon in Virginia, at Last Grew Rich, Lived Honest and Died a Penitent.