If a picture is worth a thousand words, what about a movie?
A movie literally has a thousand words, so I don't know what you were trying to accomplish with this question. :/
Pictures are silent, movies are not.
If a picture is worth a thousand words, then a movie will be worth more than a thousand words by far. A movie is more valuable that a picture since it entails a lot of things on it.
Movies are worth a thousand of someone else's words. Photographs invoke interpretation and reflection.
It depends on how lond the movie takes