Lucy finds that her adoptive father, a museum curator, has been attacked by Silas. Before dying, he gives clues that lead her to a "Golden Ticket" in a vending machine candy bar. During "comedic" situations, fellow orphans Edward, a disillusioned monk trainee; Susan, a displaced adopted girl; and Peter, a mutant at Mutant Academy who is often teased for his chicken-like wings, all find Golden Tickets. All four meet up at Willy's Chocolate Factory. Willy reveals his plot to use them all as a special ingredient in his treats.
Attempting to hide from the maniacal Willy, Lucy finds a wardrobe. On the other side, in the middle of a wintry forest, she finds Mr. Tumnus, who welcomes Lucy to Gnarnia and warns her of danger. The others follow Lucy to Gnarnia, and Edward meets the White Bitch. She convinces him to trap the other orphans in order to become the king of Gnarnia in her White Castle.
All four go to Tumnus' house, where they discover their relation to each other in a copy of the famous painting The Last Supper, and that the White Bitch killed their parents. They ally themselves with Harry Beaver, Tumnus' life partner, to defeat the White Bitch.
Edward sneaks off to the White Bitch's castle. When he refuses to reveal to her where the others are, she flashes him her breasts, hypnotizing him into giving up the information on the orphans, then imprisons him. The White Bitch sends Silas after the trio; Tumnus apparently sacrifices himself to ensure their safety.
Afterwards, the orphans meet a graying Harry Potter, along with a balding Ron Weasley and a pregnant Hermione Granger at Hogwarts. They all help Lucy, Susan, and Peter train for the war against the White Bitch.
Captain Jack Swallows helps Edward escape, only for Edward to find out it was a ruse as Jack, the Bitch's old enemy, needs intelligence out of Edward.
Upon finishing their training, Lucy, Susan, and Peter head to the camp of Aslo. Aslo agrees to help Edward and manages to kill Silas, but while breaking Edward out, he is slain by the White Bitch. As the orphans have a pre-battle party with their allies, Susan gets drunk and vomits everywhere, disgusting their army enough that nobody shows up to help the orphans the next day. The four siblings engage the White Bitch in battle and are killed. Peter then finds a magic remote and uses its powers to revive his siblings.
Together, they kill the army, defeat the White Bitch, and stop her plan. Peter declares the White Bitch will receive a fair and just trial in the new Gnarnia, but Jack's wheel accidentally crushes her to death. The four are crowned the new rulers of the land. Tumnus then shows up, having survived his battle. Decades later, the four now-elderly rulers find the wardrobe again and go through it. They appear moments after they had left, young again. They meet Borat, who congratulates them on a happy ending, but then, Jack's wheel accidentally runs over the quartet, killing them. Borat then says his iconic "NOT!" before turning around and clapping his buttocks, ending the film.
Extended version
The unrated, longer version (released in the United Kingdom as the "Rude & Crude Unseen Version") of the film features some scenes not shown in the theatrical version. In an alternate ending, Willy Wonka, instead of Borat, comes in and says: "I told you it was going to be an epic adventure." Willy Wonka then goes in the wardrobe and puts out a "do not disturb" sign that refers to the girl in the wardrobe. The Oompa-Loompas come in and start singing the Willy Wonka theme song. The four are then crushed by the wheel. Also, during the scene where Lucy is crushed under the junk that falls out of the wardrobe, the girl who runs out is nude, as opposed to wearing a bikini. In the Snakes on a Plane scene, when the Samuel L. Jackson lookalike yells, he replaces "goddamn" with "motherfuckin'".
Kal Penn ... Edward
Adam Campbell ... Peter Pervertsky
Jennifer Coolidge ... White Bitch
Jayma Mays ... Lucy
Faune Chambers Watkins ... Susan Pervertsky (as Faune Chambers)
Crispin Glover ... Willy Wonka
Tony Cox ... Bink
Héctor Jiménez ... Mr. Tumnus (as Hector Jimenez)
Darrell Hammond ... Captain Jack Swallows
Carmen Electra ... Mystique
Fred Willard ... Aslo
David Carradine ... Museum Curator
Kevin McDonald ... Harry Potter
George Alvarez ... Ron Weasley
Crista Flanagan ... Hermione Granger
Dana Seltzer ... Flight Attendant
Dane Farwell ... Albus Dumbledore
Tad Hilgenbrink ... Cyclops (as Tad Hilgenbrinck)
Jim Piddock ... Magneto
Vince Vieluf ... Wolverine (as Groovy)
Kahshanna Evans ... Storm
Lindsey Kraft ... Rogue
Jareb Dauplaise ... Nacho Libre
Rico Rodriguez ... Chanchito
Danny Jacobs ... Borat / Pirate with Eye Patch
David Lehre ... Ashton Kutcher
James Walker Sr. ... Samuel Jackson
Tysen Knight ... Kanye West (as Cordele Taylor)
Alla Petrou ... Paris Hilton
Gregory Jbara ... Mel Gibson
Jill Latiano ... Singing Pirate Girl
Abe Spigner ... Flavor Flav
Shawn McDonald ... P. Diddy Faun
Lauren Conrad ... Lauren Conrad
Katt Williams ... Harry Beaver (voice) (as Katt M. Williams)
Nick Steele ... Lead Archer
Brennan Thomas ... Woodsman
David J. Catching ... Aslo's Camp Band
Jesse Hughes ... Aslo's Camp Band
Brian O'Connor ... Aslo's Camp Band
Gene Trautmann ... Aslo's Camp Band
Kenny Yates ... Pirate with Heart
D.J. Dierker ... Pirate (as Daniel Joseph)
Taran Killam ... Pirate
Jeremy Rowley ... Pirate
Qiana Chase ... Pirate Wench
Jillian Grace ... Pirate Wench
Masha Lund ... Pirate Wench
Pollyanna Uruena ... Pirate Wench (as Pollyanna Salas-Uruena)
Sara Jean Underwood ... Pirate Wench (as Sara Underwood)
Olivia Hardt ... Cribs Faun
Zee James ... Cribs Faun
Ginny Jones ... Cribs Faun
Britten Kelley ... Cribs Faun
Arielle Vandenberg ... Cribs Faun
Heather Storm ... Aslo's Girl
Irina Voronina ... Jogging Girl
Audra Lynn ... Wardrobe Girl
Darko Belgrade ... James Bond
Brookelyn Freed ... Bond Girl (as Brooklyn Freed)
Michelle Lang ... Bond Girl (as Michelle Misty Lang)
Sabi Dorr ... Blacksmith
David Whatley-Zepeda ... Silas the Monk (as David Whatley)
Mike Grief ... Prison Guard
Mary Castro ... Breast Bite Woman
Ron Léroy ... Nose Bite Guy
Thomas Van Tassel ... Crotch Bite Guy
Lichelle D. Ebner ... Morphed Mystique
Paul Zies ... Thug
Roscoe Lee Browne ... Narrator (voice)
Ronald Lee Clark ... Oompa Loompa
Joe Gieb ... Oompa Loompa
Arturo Gil ... Oompa Loompa
Ricardo Gil ... Oompa Loompa
Michael Lee Gogin ... Oompa Loompa
Joseph S. Griffo ... Oompa Loompa
Pancho Moler ... Oompa Loompa
Mighty Mike Murga ... Oompa Loompa
Mark Povinelli ... Oompa Loompa
Jon Simanton ... Oompa Loompa
David Steinberg ... Oompa Loompa
John Tamaki ... Oompa Loompa
Kevin Thompson ... Oompa Loompa
Tyce Diorio ... Willy Dance Double
Richard Steelo Vasquez ... Curator Dance Double (as Richard Steeio Vasquez)
Megan Hiratzka ... Dancing Pirate Girl
Samantha Faye Lee ... Dancing Pirate Girl (as Samantha Lee)
Philip Albuquerque ... Breakdancing Pirate (as Philip 'Spee-D' Albuquerque)
Jaime Burgos III ... Breakdancing Pirate (as Jaime "Venum" Brugos III)
Oren Michaeli ... Breakdancing Pirate (as Oren 'Flearock' Michaeli)
Frankie DeMiranda ... Dancing Soldier
Chadd Smith ... Madd Chadd
Anwar Burton ... Michael Jackson
Epic Movie was nominated for three Golden Raspberry Awards, Worst Remake or Rip-off, Carmen Electra for Worst Supporting Actress, and Jason Friedberg and Aaron Seltzer for Worst Screenplay.