First there was Dumb and Dumber in 1994. Then there was the sequel Dumb and Dumberer in 2003. Now, after almost twenty long years since their first movie, Jim Carrey and Jeff Daniels are reuniting on the silver screen as Llyod and Harry. The Tonight Show Starring Jimmy Fallon has just debuted the official trailer for the new movie that has instantly gone viral. Dumb and Dumber To is set to debut on November 14th later this year.