is a 1967 American comedy film directed by Peter Tewksbury and starring Sandra Dee, George Hamilton and Celeste Holm.

The film is based on the 1965 debut novel Three for the Wedding by writer Patte Lee Mahan, which the Los Angeles Times called "a highly entertaining and amusing book.

"[3] Trident Productions, a company established by director Delbert Mann, producer Douglas Laurence and writer Dale Wasserman, bought the film rights.

[5] Sandra Dee selected the role of Heather instead of a part in a film shooting in London with Warren Beatty.

[7] George Hamilton was in a highly publicized romance at the time with Lynda Bird, daughter of president Lyndon Johnson.