I tried to watch Avatar once. I had to stop when they were flying some random creatures around random flying rocks for 10 minutes of movie time. This was too much for me to stomach.
Went to watch Elysium tonight. Wasn't very good, plot didn't really go anywhere unpredictable and characters didn't develop enough to make it either interesting or intense.
It was directed by the Lethal Weapon guy which was actually really easly noticed through the movie. It was a terrible choice by the studio because obviously this guy is not made for such movies.