Knights of Badassdom is a 2013 American comedy horror film, directed by Joe Lynch, written by Kevin Dreyfuss and Matt Wall. It stars Ryan Kwanten, Steve Zahn, Summer Glau, and Peter Dinklage.Plot:
Three best friends and dedicated roleplayers take to the woods to reenact a dungeons and dragons-like LARP. Trouble arises when a prop spellbook purchased from the internet ends up being a genuine grimoire and they unwittingly conjure up a blood-lusting succubus from hell.