Dumb and Dumberer: When Harry Met Lloyd (commonly known as Dumb and Dumber: When Harry Met Lloyd, Dumb and Dumberer and Dumb and Dumber 2) is a 2003 comedy film and prequel to 1994's hit comedy Dumb and Dumber, and stars Eric Christian Olsen, Derek Richardson, Rachel Nichols, Bob Saget, Luis Guzmán, Eugene Levy and Mimi Rogers. The film was poorly received by critics; however, it was a mild domestic box office success considering its budget, taking in just under $40 million.
Harry Dunne (Derek Richardson), homeschooled all his life, finally gets his chance to go to regular school. At the same time, another guy named Lloyd Christmas (Eric Christian Olsen) - who has been adopted and exchanged several times until he was accepted by Ray (Luis Guzman), the school janitor, as shown in the deleted scenes - becomes overeager, and gets out of school to get into school. Harry bumps into Lloyd on the way, in search for a treasure his mother (Mimi Rogers) asked him to find, and as if it were destiny, the two instantly became the best of friends.
Lloyd introduces Harry to his 'friend', Turk (Elden Henson), the school bully whose main function in life appears to be making Lloyd's life hell (despite the latter enjoying it). After putting Lloyd in a dustbin, he hoists the two friends up a flagpole. Meanwhile, corrupt Principal Collins (Eugene Levy) is searching for a way to get a large amount of money to get a condominium in Waikiki. Seeing two guys getting hoisted on a flagpole makes him establish a 'special needs' class to swindle $100,000 from the local community. Obviously, Lloyd and Harry are more than thrilled to help, and thus find themselves signing up people who are 'different' for the class. These include a reluctant Turk; a teen named Toby (Josh Braaten) who broke his leg in a skateboarding accident - and whom Lloyd believes is a 'little crippled boy'; Toby's gorgeous girlfriend, Terri (Teal Redmann); geeky Lewis (Shia LaBeouf) - whom Harry and Lloyd believe is a centaur after seeing him half-dressed in his horse mascot costume; Cindy (Michelle Krusiec), also known as Ching-Chong, an Asian exchange student who later becomes Turk's girlfriend; and Carl (William Lee Scott), a badly injured football player obsessed with his sport.
Jessica (Rachel Nichols), a headstrong student, is suspicious of Collins' sudden contribution. She asks Harry for information. Harry, who thinks that she is flirting with him, turns to Lloyd for courtship tips. A repulsive disaster involving Jessica's bathroom and a melted chocolate bar scares her father (who freaks out, thinking that it's "shit") and directs her attention to Lloyd. Soon, the two friends get into a fight over Jessica, without her knowing it. Inevitably, the two make amends when Lloyd and Harry realize that they were nothing without each other (that, and the fact that Lloyd stole a stuffed polar bear from a field-trip they had, plus the principal's "evil scheme" evidence he stashed in his office, thinking it was Harry's supposed treasure).
It so happens that the Special Needs class was asked to build a float for President's Day at that time; instead of building a float with George Washington as the main attraction, they change it to look like Collins (as a pirate) with repeated recordings of his evidence. Collins is arrested before he can get away, and Lloyd and Harry are regarded as heroes. However, like the first film, the duo's advances to Jessica were in vain, since it turned out that she had a boyfriend. As the couple rode off, Lloyd and Harry vowed never to fight and risk their friendship over a woman, again; that vow was repeatedly broken. As the guys head home, they are approached by the Felcher Twins (Julia and Chandra Costello) in a sports car, who offer to take them to a huge party. The two friends turn them down, and Harry gets covered in mud and dirties Jessica's father's car (who again thinks it's "shit").