"I Am Number Four" is Number Two. A cheap joke, but it's just what this adolescent stinker deserves. Granted, nigh unwatchable cinematic misfires haunt the calendar's early months, amongst whose company D.J. Caruso's latest foray into teen actioners is admittedly a god among insects. Copping a Michael Bay aesthetic (Bay produces), "Number Four" does "Twilight" by way of "Transformers." The film is slick, glossy, and absolutely uninteresting.