Trying to design posters of your favorite movies is always one of the best ways to learn new techniques and tools as well as having a lot of fun.
The cinemagraph is one of the most awesome category of GIFs. The idea of perpetuating a single moment of your favorite character or movie is definitely worth the time spent to do these.
From Alien to Napoleon Dynamite, these cinemagraphs are some fine examples of GIF fine-art. If it was possible, I would hang many of these in my wall... like a fine picture of Roy Batty, in the rain, as he dies. Man, pure poetry there. These are only a handful. For more, visit Cinemagraphcollection.com, because they got tons of other pieces there. Cheers! ;)