Looks like a fake. People will sometimes put a pic (usually in uncompressed AVI format to make it humongous and fill up the 700 MB needed to make it look like a regular movie) with a link to suspicious sites (which may contain malware or viruses, phishing, or just plain spam).
See this thread
http://www.moviecodec.com/topics/44398p1.html
Mark it, delete it, and move on.
Alternate way to check: feed the movie into avicodec or gspot. I’m pretty sure the duration will be short (2 min like you said) and it will be uncompressed (_RG

, or some raw format (YUY2, I420, YVU9, etc.)