Heck, gymnastics/acrobatics/diving/swimming are considered a sport. The problem is that they aren't rated and they aren't really competing. Ideally, you've got highly acrobatic improv acts going on in front of you, with a defined beginning and a defined ending, and no rating/scores being released publicly. The physical performance is athletic enough to be sport, but the event itself is not really a competition. It's strange when you think of it.
Put it in the soap opera/chick flick section of the movies. Give the whipped me something they'll appreciate when they go to get a movie with GP.