You can use the Millikin Library Discovery to find videos on your topic.
After searching for your topic in "Library Catalog", select "Videos" under the Resource Type filter in the menu on the left side of the screen to limit your results to just films or videos.
Many online news sources provide reliable video content.
More general video sites like YouTube and Vimeo contain a large number of videos on a variety of topics, but be careful. Evaluate these videos very closely to be certain of their quality. Find out who created the video and try to determine why the video was created.