Basketball, San Andreas, and Music. I like making stunt vids, but they're from a webcam, so they pretty much suck at quality, but some okay stunts really.
Freefall.... was the the mission where you have to get on the plane with the bike? In the future, tap up to go faster, and avoid the barrels until you get really close to the plane. If it's not the mission, then disregard this.
^That's probably the easiest way. I've had trouble with this mission as well. If you don't want to try that, fly around a little, practice turning and everything, get ahold of the controls, get used to them. It helps, trust me.