You might feel you've watched the premieres of half a dozen TV series after seeing D.J. Caruso's flashy adolescent fantasy. Or maybe as many recent films. But despite its lack of originality, I Am Number Four does offer a few rewarding moments. The dog, for example. And Callan McAuliffe's Sal Mineo turn as the bullied nerd Sam. And Kevin Durand's gleeful sadism as the commander of the evil aliens, the Mogadorians. Otherwise, it's business as usual, as alien teen "John Smith" (Alex Pettyfer) lies low with his guardian Henri (Timothy Olyphant) until he can develop his powers, reunite with his fellow exiles, and whip the Mogadorians' asses. The two hole up in a tiny Ohio town, but had they been watching the Twilight series, they'd have realized that puppy love with a mortal (Dianna Agron) would gum up their plans. Sporting a rousing but over-edited climactic battle sequence and some pubescent double entendres, this might justify an I Am Number Four Number Two.