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Rated: 5.8 out of 10 with 13,297 votes.
Boy meets girl; boy falls in love (and had wild, non-stop sex) with girl; boy loses girl... when they discover they are brother and sister! But when he learns that he's the victim of the ultimate case of mistaken identity, the lovesick young man -- whom everyone still thinks is after some taboo thrills -- must race across the country to stop her from marrying another man.
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5.8RUnited StatesEnglishIMDbTrailer
Main Actors:
Gilbert Noble
Josephine Wingfield
Dig McCaffrey
Valdine Wingfield
Walter Wingfield
Larry Falwell
Leon Pitofsky
Jack Mitchelson
Jimmy Mitchelson
Streak
Sheriff Merle Hobbs
Detective Vic Vetter
Stewart
Ruthie Falwell
Reverend Stillwater
Nurse Bautista
Mr. Campisi
Boy
Cher Falwell
Gina
Mrs. Hartunian
Mr. Chin
Asian Man
Title:Say It Isn't So
Release Date:
Directed by:J.B. Rogers
Genres:ComedyRomance
Keywords:Crude-HumorMistaken-IdentityTabooCross-Country
Alternative Titles:Sig Det' løgn
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