I also got to follow a growing movie trend, even though I usually try to avoid trends: I saw the Harry Potter film in theatres.
I actually have yet to read any of the books but I had to say: the film was bloody brilliant. It actually made me want to read the books now.
Previews also reminded me just how much I anticipate the premiere of the first Lord of the Rings movie. This for a trilogy I haven't read in 20 years too!