There are others. Decent books make better movies, while great books are nearly impossible to translate to the screen. Books offer a much more personal experience and can employ a range of literary devices to convey their meanings. Movies have to be breezy, instant, and sharp. There is little time for exposition or the fleshing out of irrelevant characters.
Movies have to run to schedule.
There are time limits and running times. Many books are enjoyed because the writer's voice is heard and appreciated by its die-hard readers. Take Stephen King, for instance. His books are much loved because his distinctive style is present throughout his huge body of work. Lots of psychological prose, long sentences and probing the characters' inner-most thoughts.