| One Is a Lonely Number | |
|---|---|
 Original film poster | |
| Directed by | Mel Stuart |
| Screenplay by | David Seltzer |
| Based on | "The Good Humor Man" 1967 story in The New Yorker by Rebecca Morris |
| Produced by | Stan Margulies |
| Starring | Trish Van Devere Monte Markham Janet Leigh Melvyn Douglas Jane Elliot Jonathan Lippe Mark Bramhall Paul Jenkins A. Scott Beach Henry Leff Dudley Knight |
| Cinematography | Michel Hugo |
| Edited by | David Saxon |
| Music by | Michel Legrand |
| Distributed by | Metro-Goldwyn-Mayer |
Release date |
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Running time | 97 minutes |
| Country | United States |
| Language | English |
One Is a Lonely Number (also known as Two Is a Happy Number) is a 1972 American drama film directed by Mel Stuart, and starring Trish Van Devere, Janet Leigh, and Melvyn Douglas. The screenplay, based upon the short story "The Good Humor Man" by Rebecca Morris, was written by David Seltzer.