Alive From Planet Earth

The prince of nouveau-hippie chic always complains about his retro rep but then releases Alive From Planet Earth, a 90-minute vanity documentary that — with its smoky concert footage and its behind-the-scenes clips of his band noodling about and the artist himself pensively staring out at the ocean — is exactly like one of those stoner rock movies shown at midnight screenings in the '70s. Actually, make that midnight horror rock flicks: With his platform shoes and dreads, Lenny Kravitz on stage often bears an amusing resemblance to the alien in Predator. C