He was psyched. But apparently the studio wasn't.

Jim Carrey just pulled out of the sequel of "Dumb and Dumber" just a few months after the project was announced. The reason: Carrey became progressively more frustrated with New Line and Warner Brothers' apparent lack of enthusiasm for the project (according to ETOnline sources).

UPDATE (6 p.m. PST): Sources close to the project tell Yahoo! Movies the film will not be made without Carrey.

"I would have thought 'Dumb and Dumber To' [the sequel's title] was a no-brainer, after all it's implied in the title," a clever Carrey told ETOnline through his spokesperson.

[Photos: 'Dumb and Dumber' movie stills]

In early April, director Peter Farelly confirmed that both original leading men, Carrey and Jeff Daniels, would reprise their roles in a "Dumber" sequel to begin shooting in September.

It's unclear whether the project will continue without Carrey's involvement. (See update above.)

Fans shared their thoughts on Twitter, largely expressing disappointment:

"Boo!" tweeted Alina Marie, while Nathan Spicer typed, "Definitely not seeing it now..." Brandon Night simply tweeted "Sad day," while Josh Schlag took to Twitter to criticize the Farrelly brothers, saying they "...dug their graves with 'The Three Stooges'." Hael Abdulrazed, instead, criticized Carrey himself: "...his whole life is about disappointing fans."

Carrey hasn't completely burned his bridge with New Line and Warner Brothers: He appears next year in their film "The Incredible Burt Wonderstone."

"Dumb and Dumber" was the third in a string of hit comedy films Carrey starred in during the year of 1994 -- launching him from mere comedy skit show actor on Fox's "In Living Color" to A-list movie star. "The Mask," and "Ace Ventura: Pet Detective" preceded "Dumber" that year.

Watch a 'Dumb and Dumber' clip: