Ehrm....Lame
Your movie....well...sucked. I'm not just going to tell you it sucked and leave it at that though. First off, the animation was pretty much weak. The sprites weren't very well animated. All the humor in the movie was the same humor in a lot of other flash movies, nothing new or exciting. The storyline was weak, and the whole Mario-Luigi thing has been way overplayed. Seeing that it's your first project, I can see why I didn't like it all that much. But, it is impressive for a first shot. Just work on it, and come up with some new humor.