Crazy, Stupid, Love (2011)
A wife confesses to her husband that she slept with a co-worker and wants a divorce.
major plot point
I Am Love (2009) – Tilda Swinton
A rich man’s wife likes the taste of a chef’s cooking, so she tastes the chef too.
Friends with Benefits (2012)
Alex and Jessica pretend to be married to join a swinger’s club. Meanwhile, a husband in the club gets jealous because his wife is always screwing the same hot woman. From New Sensations
ADN-006 Wives Kaho Kasumi, Takeuchi Rina Gauze In Intrigued Relation (2013)
Two apartment husbands unknowingly exchange wives. One husband has to use force initially, but the other doesn’t have to since the other wife is sluttier.
7th Heaven (2013) – Thailand
A politician’s girlfriend seduces her driver.
A Slight Case of Murder (1999)
A suspect is almost cleared for a murder case until he screws the investigating police officer’s wife.
A Man and a Woman (1993)
A man evades a debt collector, so the debt collector sleeps in his house to wait for him and ends up screwing the man’s girlfriend.
La Notte (1961) a.k.a The Night
A wife has a chance to get back on her cheating husband but does not take it.
SAMA-809 Document Production Is Wooed By A Damn Beautiful Wife Too Perfect (2014)
Two husband watch their wives via hidden cameras and see if they will go with random guys who try to pick them up.
Sex Games for Couples (1976) aka Fantaisies pour Couples – France
Two couples are cheating with each other’s spouses before having an official wife swap.