Consider the following picture (which is linked to the original’s Flickr page if you want to see it in more detail).
Now: come up with the title, author, and synopsis of a book that would evoke this image. Alternatively, come up with the title, director, and synopsis of a movie that would contain the image. Part of the challenge is to write the synopsis so that it’s obvious why this image is important.
And since we’re on the subject of using photos to inspire creativity, here’s one based on the excellent webcomic Found Comics. Go to Flickr and search for a common-word tag—say, “pie” or “funky” or “computer”. Take the first few images in the results, and then construct a short narrative that ties them together. And be sure to credit Found Comics for the idea if you publish whatever you come up with!