I finally got to see Scott Pilgrim vs. The World last night and it was definitely one of my favorite movies in a long time. The first thing you hear is a sound effect from Zelda.

Less than two minutes in, you hear two more! Sound effects from other games are used throughout the whole movie, alongside scenes and little things that emulate video game UI and comic book style so well and so uniquely. And it had a lot of hilarious moments, and tons of inside jokes and delicious references that only a nerd/geek/gamer could understand.
Oh and the wardrobe is awesome. I mean, Scott wears not one, but TWO Smashing Pumpkins shirts in the film = Awesome with me (I could only have wished they had gotten a real MOTHER 2 shirt like in the graphic novel). Speaking of MOTHER, regardless of whether it was an intended reference or not, I still smiled when the Chaos Theatre showed up.
The fight scenes were good too.
Oh and the girl who plays Ramona is mad hot.
I couldn't recommend the movie any more to anyone who is a little nerdy or has at least enjoyed one video game and seen one comic book in their life.