Finally saw this over the weekend; back in January, I got directed the wrong way down Ridge Pike and missed the screening. Anyway, good movie, great idea, pretty funny, but could've been better.
The movie is mostly just a wasted opportunity. Its trailer made it look like a deconstruction of Cera's movie persona- the huge wuss who everyone's sick of, finally deciding to become the exact opposite. But instead, it didn't do nearly enough with the premise. ("Paper Heart," one of last year's worst films, wasted a similar opportunity.)
Still, impressive, coming from director Miguel Arteta, whose previous films ("Chuck and Buck," "The Good Girl") I didn't especially care for.