Books into Movies

What do you think of books that are turned into movies? I'm reading the first Twilight book now after seeing the movie and I find it hard to put out the images of the movie in my head as I visualize the story. (i.e. Edward looks like Robert Pattison in my mind, but suprising Bella doesn't look like Kristin Stewart)

Usually I read a book first before seeing the movie, like Marley & Me (still haven't seent the movie, but will soon).  Do you have the same issue as I do? I also feel like the movie will never live up to the book itself? Perhaps that's the point, and I need to suspend my disbelief, and enjoy the movie as a movie.

Just a little non-book we're reading thought.  Speaking of, anyone have a book in mind they want to read next? Seems Keiser and I are both into the Dark side at the moment.

Mere