You can use copyrighted materials in your classwork, as long as it's not published publicly. However, if you're going to publish anything online, you need to make sure you have the right to reproduce all the images, video clips, and sounds you use.
Check out these resources, which have Creative Commons licenses that tell you exactly how you're allowed to use them, and make it easy to attribute the work to the creator!
Porter Campus
1801 Massachusetts Avenue
Cambridge, MA 02140
617-349-8070
South Campus
89 Brattle Street
Cambridge, MA 02138
617-349-8850