Filmmaking duo the Farrelly Brothers are still waiting on movie executives' final approval to proceed with their planned Dumb And Dumber sequel.

Peter and Bobby Farrelly are keen to reboot the 1994 comedy about two dim-witted pals, and fans were given a boost last summer (12) when actor Jeff Daniels insisted both he and his old co-star Jim Carrey were ready to start work on the follow-up as soon as they received a polished script.

Now Peter Farrelly claims the screenplay for Dumb and Dumber To (sic) is done - and the current hold-up lies with Warner Bros. bosses.

He tells Entertainment Weekly, "It's not a firm greenlight yet because there are still negotiations happening, but that's what we'd like to do next. We have a script that's really, really fun."