I Survived A Zombie Apocalypse
is an Australian low-budget zombie movie about the making of an Australian low-budget zombie movie. The lead actress of the movie-within-the-movie gets turned into a zombie and wanders into the lead actor's trailer. He, of course, assumes that she has finally succumbed to his manly charms and proceeds to...take advantage of the situation.
Somebody should have said:
Well, she did say she'd die before she'd have sex with you.
Later, he finds out that there is yet another way to become a zombie; he is now the not-so-proud owner of a genuine zombie wanker, and will inevitably turn into one of the walking dead.
Look on the bright side, mate -- you can do her again and nothing worse will happen to you!