Dumb and Dumber (1994)

Most people think so. 84% of audiences gave it a thumbs up, by Google's archived audience score. Critics scored it lower at 55%, but audiences disagreed.

Lloyd and Harry are two men whose stupidity is really indescribable. When Mary, a beautiful woman, loses an important suitcase with money before she leaves for Aspen, the two friends (who have found the suitcase) decide to return it to her. After some "adventures" they finally get to Aspen where, using the lost money they live it up and fight for Mary's heart. Wikipedia ↗

Dumb and Dumber is a 1994 American comedy directed by Peter Farrelly. Jim Carrey and Jeff Daniels star as Lloyd Christmas and Harry Dunne, two spectacularly unintelligent best friends in Providence, Rhode Island who embark on a cross-country road trip to Aspen, Colorado to return a briefcase to a beautiful woman named Mary Swanson, played by Lauren Holly — unaware that the briefcase is full of ransom money and that they are being followed by kidnappers. Jim Carrey, at the peak of his 1994 breakout year, was operating at maximum physical comedy intensity, but the revelation was Jeff Daniels, a respected dramatic actor who matched Carrey's absurdity beat for beat and brought genuine sweetness to Harry's dim-witted loyalty.

The Farrelly Brothers' humor was aggressively lowbrow — involving laxatives, decapitated birds, and a tongue frozen to a ski lift — but delivered with such infectious energy and genuine affection for its protagonists that the vulgarity never felt mean-spirited. The "most annoying sound in the world" scene and Lloyd's fantasy sequence became comedy touchstones. Dumb and Dumber earned $247 million worldwide on a $17 million budget.