When Men Carried Clubs and Women Played Ding-Dong(1971)

Original title: Quando gli uomini armarono la clava e... con le donne fecero din-don

In this prehistoric adaptation of Aristophanes' 'Lysistrata' and 'Women at the Thesmophoria,' a frustrated wife convinces the women of warring tribes to abstain from sex with their male partners in an attempt to end the fighting.