Creative Commons images allow you to reuse, remix and share these images. To find creative commons images on Flickr here is the Option #1 as showed in the film. Option #2 brings you straight to the page where you can find filtered images though the six different licenses.
Here are some resources on Creative Commons right here on New Media Rights:
This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.