Can you post a link to some research that conclusively proves string theory being completely, totally wrong? If not, then let string theory stand as a hypothesis, but don't totally dismiss it (or dismiss it, you may or may not be wrong).
Also, if you think somebody is going to take a 10 minute web video as the answer to the universe (everybody knows it 42) and a substitute for an ungodly amount of science, research, and knowledge then you have mistaken.
The only thing that video has to do with string theory is that it contains the words "string theory". Go read "The Elegant Universe" instead. (Don't watch the PBS series, read the book. It's not the be-all, end-all of string theory, but it's actual knowledge, not anti-knowledge.)
Criticizing this video is not criticizing string theory; this video would be vastly improved if it actually contained any sort of truth about string theory.
Being short is not an excuse for being grotesquely wrong. Not simplified, which has its place, but wrong.
People who take issue with string theory do so precisely because what you're asking is impossible (in their view, anyway). Various technical properties of the theory (like the fact that it represents only a description of an uncountably infinite class of possible mathematical theories) make it impossible to disprove. See, for example: http://www.math.columbia.edu/~woit/wordpress/
None of which has anything to do with the problems in the video. Those are more of the "subtle, pernicious category mistake" variety.
Also, if you think somebody is going to take a 10 minute web video as the answer to the universe (everybody knows it 42) and a substitute for an ungodly amount of science, research, and knowledge then you have mistaken.