Cinematical has just received this exclusive poster (click on the image for a larger version) from the upcoming comedy Superhero Movie -- which claims to be "the greatest superhero movie of all time (not including the others)." As you can see, the poster is in line with those the Scary Movie franchise have churned out over the years -- and I'm sorry, but I couldn't help but get a kick out of Leslie Nielsen's t-shirt: "With great power comes hot bitches." Nice. A spoof of several popular superhero flicks, Superhero Movie revolves around a high school kid named Rick Riker who develops superhuman abilities after being bitten by a genetically altered dragonfly. Thus, he soon becomes The Dragonfly ... and must go on a quest to stop a supervillain called The Hourglass from taking over the world. Of course, look for a whole slew of ridiculous antics in between. Superhero Movie touches down in theaters on March 28, and you can view the trailer over at Moviefone.