Only reason I don't give it 4 is that everyone seems to have forgotten why ROCKET Raccoon is called ROCKET RACCOON.  Its because those rocket skates that you see "Star Lord" using throughout the movie are supposed to be on the Raccoon.

Outside of that I would go so far as to say this is the only good movie I have seen this decade.  And yes, I could go see it again, but for three of us it cost over $40 to get in teh theater, which is why I may wait for it to hit Showtime or HBO