Sirry, this is going to be one of those really vague threads! Triggered by watching 'the heartbreak kid' on Netflix I remembered a similar film from the late 70s or early 80s. Plot whereby newly married couple ho on holiday and he falls for another woman on the beach. Spends the whole time trying to avoid/dump his wife so he can pretend to be single to be with the other woman. Does this ring any bells for anyone? Its bugging me that I can't think of it!