You should probably note though that images from these movies probably do not fall into the category of "fair use" category. You could use parody images, but not the exact one. Like if you made a parody batman logo using a different animal, but taking stuff straight from the movies isn't really allowed legally.
Some movies though, if you go back long enough, are available in the public domain and that means you can use those images freely. For example, the images i used in the Alone in the Woods PDF are all from the oldest version of robin hood, which is from the 1920's and thus those images are public domain and are free to use legally speaking.
As far as images go, there was a post a long time ago in the 2009 1km1kt that had a list of places that you can find good Public Domain or Open Source images which are free to use. Wikimidia Commons has some great stuff that is either free use, or free use with attribution.