When I first watched Goodfellas, I was underwhelmed, and gave it a decent score.  I was an idiot.  On rewatching this movie it is much, much better than I previously thought.  Even when you know exactly what is going to happen this movie is still able to make you feel tense and eager.  The acting is incredible, the setting and cinematography are great, and the story is amazing.  There are very few low points in this movie, although I admittedly always get a little bored near the end.  But it's hard to stop watching during any point in this film, and it is by far one of the best crime movies ever made. I still don't think it deserves a perfect score, but maybe when I watch it again I'll change my mind.