Dumb and Dumber To 2 stars Directed by Bobby and Peter Farrelly Starring Jim Carrey, Jeff Daniels, Rob Riggle, Rachel Melvin Rated PG-13

Jim Carrey, Jeff Daniels and the Farrelly brothers have aged 20 years since "Dumb and Dumber," their 1994 comedy about two dimwits sailing through life on a sea of their own bodily fluids. The good and bad news about their long-awaited reunion, "Dumb and Dumber To," is that maturity hasn't caught up with any of them.

"Dumb and Dumber" was such a hit that a prequel and cartoon series followed, though the principals weren't closely involved. Those projects tanked, proving that there was some ineffable magic in the combination of Carrey as the bowl-cut Lloyd Christmas; Daniels as the frizzy-haired Harry Dunne; and writer-directors Peter and Bobby Farrelly, whose sense of humor is essentially The Three Stooges with flatulence.

The original film was a series of set pieces hung on a flimsy caper-plot. In the sequel, Harry learns that he has a daughter, Penny (Rachel Melvin), who has been adopted by the eminent Dr. Pinchelow (Steve Tom). Kathleen Turner plays Penny's tramp of a mother, Fraida Felcher (a subplot from the first film), while the dependable Rob Riggle does fine work as an exasperated villain. All you really need to know, however, is that this movie includes jokes about colostomy bags, blind people and masturbation.

Carrey is as energetic and rubber-faced as ever, while Daniels has improved, vying for co-star status instead of playing the straight man. Still, Harry and Lloyd remain less than endearing.