While it's loading...
...I'll take the chance two things before I see it. One, King of the Bongo is such a long song that you probably should've sliced it up a little in a sound editing program (like Sound Forge, to name one) to prevent it from getting boring to the average NG viewer. Two, seeing the filesize, I'm sure you just used the music as an event sound. Which is bad because not only does it push up the filesize, but the movie's animation will quickly fall behind on the music. In the sound panel, change "event" to "stream" and be sure the layer the music's on is stretched to the very end of the movie. Now your animation will keep up (as best as possible) with the music, and the filesize will be rigorously downsized, at the cost of some quality (but we can live with that).
Writing now while the movie's playing...
Uh... the character's mother reminds me of Barbara Bush. It's not that important, but shouldn't these characters be black or at least a little more dark-skinned? His dad's from the Congo, after all...
OK, the animation starts off well with an animated character, background and monkeys, but it rapidly gets more repetitive and animations are more frequently just duplicated. There's some imported photoshopped fonts that don't look so well in this context, a lot of nonsensical stuff that's not random enough to be funny and then...
...when the song's not even close to finished, you suddenly leap into a political statement and push an ad for your site in our faces, then you just let the last three minutes of the song run on a credit screen. I know it's a long song, but this way it just looks like you got bored with it with one-third finished. And that's a real annoying way to end it. If you're willing to go back in and change stuff, I'd say cut up the song till it fits better in your movie, set it to stream, take out the political statement and hold the ad for your site till the "end" screen.