By Anthony Breznican
Updated July 23, 2011 at 12:00 PM EDT

There be monsters in need of pummelin’!

So sayeth the live-action role-player portrayed by Peter Dinklage, and whatever the Game of Thrones star says, goes.

Director Joe Lynch selected a cast heavy with sci-fi/fantasy icons — Dinklage, True Blood‘s Ryan Kwanten, Serenity/Firefly‘s Summer Glau, Community‘s Danny Pudi, Mad Men‘s Michael Gladis and It’s Always Sunny in Philadelphia‘s Jimmi Simpson — a nice guy who always plays bad guys. The whole gang presented their film about a group of Dungeons & Dragons-style role-play aficionados who actually awaken a real, flesh-eating hell succubus.

The gorgeous Margarita Levieva (Lisa P., from Adventureland) plays the demon, which takes the form of Kwanten’s horrible ex-girlfriend after the beast is conjured during a spell his friends cast on him — not realizing the words they’re reading from an old book on eBay are actually potent black magic.

Here’s the trailer that debuted at Comic-Con today:

For more, follow Anthony Breznican on Twitter: @Breznican

Read More: