I saw an early screening of this flick tonight, and I absolutely loved it. When I first saw the Red Band trailer for Step Brothers, I knew immediately this movie was going to be funny. The trailer made me laugh each time I watched it, which is absolutely not common for any comedy movie trailer I've previously seen. But my God, I did not expect the movie to be as funny as it turned out. Will Ferrel and John C. Reilly are comedy gold in this movie. The two of them, Dale(John C. Reilly) and Brennan(Will Ferrel) are two adults that still live with their parents, and because of that both of them are very childish. But once the two come together, you cannot help but laugh. The chemistry between the two is brilliant, and no matter what, you will find yourself laughing your ass off when they're interacting. At first, they're always throwing the most funny and imaginative insults at each other, and once the two become best friends, they're a god damn gut-busting mess. They have such child-like minds at times - one moment in the movie that displays their immaturity is when a girl tells Dale how much she wants to have sex with him, and he has no idea what exactly is happening. He's so confused by the fact a girl is actually hitting on him. Ferrel and Reilly are the reasons why the movie is fantastic, even though a few of the supporting characters, like Brennan's younger brother, are also quite funny. This movie had me in stitches from beginning to end. It was absolutely consistent in laugh-out-loud moments, and I haven't found myself laughing this hard in a film since Superbad. There's one line in the film made the ENTIRE theater laughing uncontrollably, and I'm not going to spoil it, but it involves Dale describing Brennan's singing voice.
All in all, Step Brothers is quite possibly the funniest film I have ever seen, and my favorite film of 2008. See it.