This year's crop of superhero movies kicks off early with "Deadpool."

This latest addition to Fox's X-Men franchise puts the spotlight on the weirdest and most irreverent hero in the Marvel Universe. Plenty of Marvel movies have delivered laughs, but none have done it Deadpool-style.

To help you prepare for this highly-anticipated, completely inappropriate superhero film, here are five things you need to know before you see the Merc With the Mouth in action.