Three Into Two Won't Go (1969)

Synopsis
American actor Rod Steiger adopts a British accent to keep apace with his co-stars in Three into Two Won't Go. Steiger plays a prosperous salesman, married to Claire Bloom (Steiger's real-life wife at the time). While on a business trip, the salesman falls for a sexy 19-year-old hitchhiker (Judy Geeson). He thinks he's in control of his philanderous situation -- until the teenager insists upon moving in with him and his wife. Dame Peggy Ashcroft also stars as Claire Bloom's mother, whose neurotic interference only makes things messier. Three into Two Won't Go was based on a novel by Andrea Newman. ~ Hal Erickson, All Movie Guide