Although it was not expected to be released until Friday, the teaser trailer for the upcoming Matthew Vaughn-directed adaptation of Mark Millar's comic Kick-Ass has arrived online.

The eagerly-anticipated movie stars Aaron Johnson as a teen who, despite an obvious lack of super powers, decides to become a real-life crimefighter, costume and all. The film also stars Nicholas Cage, Chloe Moretz, Christopher Mintz-Plasse, Mark Strong and Xander Berkeley.

Millar also penned the comic series that turn into last year's blockbuster hit Wanted, which earned $339 million worldwide. Like Wanted, Kick-Ass is said to contain some serious violence, but the trailer suggests more comedy than anything else.

Kick-Ass is scheduled to hit theaters on April 16, 2010.