The same techniques you use for evaluating other sources will also apply to images and videos. SIFT, lateral reading, and the CRAAP test are all helpful methods to determine a video's credibility, context, and purpose. However, because videos are a distinct form of media, there are a few additional guiding questions you must ask yourself:
You may also wish to conduct a reverse image search to find an image's source and determine whether or not it has been manipulated.
This video from the Australian Broadcasting Corporation includes both simple and advanced methods to determine whether or not a person in a video is AI generated.