Complex sentence: The film is a remake of the 1986 film of the same name; both are based on the 1974 play "Sexual Perversity in Chicago" by David Mamet though both film versions substitute a reconciliation of the couple at the end rather than a break-up.
Split into simpler sentences: The film is a remake of the 1986 film of the same name; both are based on the 1974 play "Sexual Perversity in Chicago" by David Mamet. Both films differ from the play by substituting a reconciliation of the couple at the end rather than a break-up.