The thing with all these twisted movies is that you never expect the ending, this one I surely didn't see coming. You played the irony factor very well, the setup to the final scene was very well done. I thought the lip sync could have be done a bit better, but it wasn't that big of a deal. The voice for Marshall was funny, along with Bradley's voice too, they reminded me of the police officers from South Park.
Any flash with Benny Hill is going to get at least a few stars from me, that song alone is enough to make me laugh. The song played when Marshall was on the treadmill was also appropriate for the scene, it helped deliver the punchline at the end even better. Overall, it was a good flash with nice animation and some interesting characters. Keep up the great work!