The Apostate (2015)

Spaniard Gonzalo (played by nudecomer Álvara Ogalla) isn't an active member of the Catholic church, but he was baptised in one. Now that he's graduating with a degree in philosophy, he wants to rock the proverbial boat and asks that a bishop rescind his Baptismal record. This doesn't go terribly well, as his mother is horrified and the church doesn't make apostatizing easy, but he manages to get into fun in the process - including an awesome dream sequence at a nudist colony where he goes balls to the wall in a full-frontal scene. The Apostate will have you officially parting ways with your pants!