Once you appear on Yo Gabba Gabba, you're not really going to be taken seriously as an actor (sorry, Elijah Wood). But Jack Black seems to have completely embraced life as a family-friendly entertainer. If your first exposure to Black was through Tenacious D tracks like "F--- Her Gently," you'll be shocked to see his recent filmography: Kung Fu Panda and its sequels. The Muppets. Gulliver's Travels, for God's sake! That's the kid movie ghetto if I've ever seen it.