Here is a really cool and easy to use site to create your very own Movie posters.  There is an easy to use form that you fill in with your title, tags and even a space for the credits.  You can also upload your own picture and then a realistic Movie Poster is created in minutes.  The file can then be saved and you can print or even order the movie poster.  A really cool thing about this site is that if you use your own picture you can even get a hi-resolution version that you can use to print out from any retailer.  They don't force you to order from them. I was able to explore the movie poster section but with a quick glance at the rest of the bighugelabs.com site it seems that there are a bunch of cool things to do with your digital pictures like turn your pics into puzzles, magazine covers, pop art.  Lots of fun for teachers with a ton of educational possibilities!
http://bighugelabs.com/poster.php