Jim Carrey and Jeff Daniels weren't interested in doing a sequel to their 1994 hit, Dumb and Dumber. Neither were the film's madcap creators, Peter and Bobby Farrelly. Therefore, New Line Cinema, which owns the property rights, did the next best thing. We hope. Dumb and Dumberer: When Harry Met Lloyd (PG-13) is a prequel tracing the high school days, and daze, of Carrey's and Daniels' respective characters, Lloyd Christmas and Harry Dunne. The casting looks terrific in preview trailers, with Eric Christian Olsen (The Hot Chick) adopting a bowl-shaped haircut and chipped-tooth prosthetic for play young Lloyd, and newcomer Derek Richardson perfectly aping Daniels' goofy tics and giggles as Harry. Now, if director and co-writer Troy Miller can do a decent impersonation of the Farrelly brothers' edgy screwball comedy style, this could be a nice guilty pleasure. The film is set in the 1980s, with Harry and Lloyd (the names honor silent film comedian Harold Lloyd) outwitting, so to speak, a grouchy high school principal (Eugene Levy). The PG-13 rating is due in part to "crude and sex-related humor," meaning that Miller has done his homework on the Farrellys. Dumb and Dumberer: When Harry Met Lloyd was screened too late for Weekend review. A review will appear on page 2B Friday.