I wrote to ask SPM about the above video clip that a blog reader was curious about; here's what he had to say:
"You said a kid named Salvadorboy13 asked about a cameo I did, and the movie was called "The Dirty 3rd." That movie was an H-town classic. The one that I was on, was Part 1, but they also made a part 2.
You can read a synopsis of the movie by the New York Times here: http://movies.nytimes.com/movie/203050/The-Dirty-3rd-The-Movie/overview
...And it looks like you can purchase it through Amazon here: http://www.amazon.com/The-Dirty-3rd-Movie/dp/B002RVZVCW