Michael Cera, red hot after the success of Juno and last summer's sleeper hit Superbad, will star opposite Sigourney Weaver in the comedy Not Our Class Dear.

The $10m production is set to begin filming in Manhattan in April and is being produced by Denise Di Novi and Flagrant Films. Los Angeles-based Flagrant, run by Mike Macari and Neal Edelstein, is financing the project.

In his first out-and-out lead role, Cera will play the scion of a Manhattan clan who rebels when he samples the delights of Harlem with a hippy chick and discovers his inner stand-up comedian. Colleen McGuinness is directing.

International buyers have cited Not Our Class Dear as one of the key US projects expected to be in play at next week's EFM in Berlin.

Los Angeles-based IM Global will commence sales on this and the supernatural thriller Shelter with Julianne Moore, which is also being produced by Macari and Edelstein. IM Global is also understood to be introducing buyers to Oren Peli's micro-budget Slamdance hit Paranormal Activity, which DreamWorks picked up for US and remake rights.