- HD 1080
- Runtime: 107m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Jerry Lewis
- Stars: Jerry Lewis, Harold J. Stone, Susan Bay Nimoy, Buddy Lester, Del Moore
- keywords: smuggling (contraband), diamond, fisherman, look-alike
- Production_studio: Jerry Lewis Productions
- Slogan: The Big Mob vs. The Big Mouth
- The The Big Mouth is featured in the top rankings of 1967
- #70 in Top Comedy Movies of 1967
- #38 in Top Crime Movies of 1967
A fisherman crosses paths with a diamond-smuggling gangster–who is his doppelgänger—and inadvertently takes his place at a resort hotel where he meets a special girl.
