Serenity
It was terrible. I actually didn't have any idea what Serenity and Firefly are before watching this (I heard people talking about them but never bothered to look into it), so I had no expectations. The movie was just bad, unless it's supposed to be a parody of flashy but dumb space operas, but that's been done before. It had some good moments, but it never crosses the line between mildly entertaining to good movie. I was shocked to see that it was well received at IMDB and Rotten Tomatoes... guess I have a terrible taste...

Being John Malkovich
This movie on the other hand was really awesome. I saw Adaptation and loved it, and I think Being John Malkovich is even better. It's a neat concept and although it kinda falls apart halfway through it manages to pick up near the end. Am I the only one who noticed how people bending in the office because of the low ceiling made them resemble puppets in a way? That was cool.