Nothing in the world can make Garfield get involved in anything besides eating, until the muscular super cat Garzooka comes crashing into Cartoon World from the Comic Book universe with terrifying news. Garfield summons up the willpower to join his superhero Garzooka in a fight to save their worlds. On the planet Dorkon, Professor Wally shows Emperor Jon his new invention, The Moscram ray gun, a device powered by the Klopman crystal that can scramble inanimate objects and organisms into new creatures under the user's control. But Emperor Jon is concerned about finding a wife to continue the royal bloodline. Soon a warship lands outside the palace. Emperor Jon sees Vetvix, and asks her if he can marry her. She agrees, but only because she wanted to steal the Moscram Ray Gun. She zombifies Emperor Jon's guards.

Welcome to FunFest the annual talent competition for the funniest comic strip in Cartoon World. As you can probably guess, a certain lasagna-loving, tubby tabby wins it every year. So why should this year be any different? Well, there's a new contender, that's why. Garfield's Fun Fest is a 2008 CGI movie starring Garfield. It was produced by Paws, Inc. in cooperation with The Animation Picture Company and distributed by 20th Century Fox Home Entertainment. It was written by Garfield's creator Jim Davis as a sequel to Garfield Gets Real. The DVD was released in stores on August 5, 2008. It was followed by a third direct to video film, Garfield's Pet Force, in 2009.

Follow Garfield behind the scenes in Cartoon World where he grows bored with his life as a comic strip star. Garfield (Frank Welker) lives with canine Odie (Gregg Berger) and Jon (Wally Wingert) in a what appears to be a suburban town inhabited by cartoon characters (known as Comic Strip World). Garfield and the gang work at Comic studios with other comic characters. The comic strip is made in Comic Strip world, and sent to "The Real World" where it is made in the newspaper. Garfield is tired of the same old jokes his friends crack and is bored with life in Comic Strip World and longs to go to The Real World. The Comic Strip requires a bone for Odie, but Odie does not want to give back the bone, and looks for a place to hide it. But he accidentally makes the bone go through the screen in the studio and it is sucked into the Real World.

Jon and Garfield visit the United Kingdom, where a case of mistaken cat identity finds Garfield ruling over a castle. His reign is soon jeopardized by the nefarious Lord Dargis, who has designs on the estate. Garfield is back and this time Garfield and his canine sidekick Odie follows their owner, Jon Arbuckle, to England, the U.K. may never recover, as Garfield is mistaken for a look-alike, regal cat who has inherited a castle. Garfield savors the royal treatment afforded by his loyal four-legged subjects, but his reign is in jeopardy! The evil nefarious stubborn Lord Dargis is determined to do away with Garfield, so he can turn the castle into a resort. Garfield's bigger, better, more perfect world is soon turned upside down in this tale of two kitties.

Jon Arbuckle buys a second pet, a dog named Odie. However, Odie is then abducted and it is up to Jon's cat, Garfield, to find and rescue the canine. Garfield, the fat, lazy, lasagna lover, has everything a cat could want. But when Jon, in an effort to impress the Liz - the vet and an old high-school crush - adopts a dog named Odie and brings him home, Garfield gets the one thing he doesn't want. Competition. One night Odie runs away and gets dog-napped after Garfield locks him outside. Garfield, in an out of character move, goes to search for and rescue Odie with the help of a variety of animal friends along the way.

As the village of Berk prepares for its winter holiday, the resident dragons all inexplicably fly away. The Viking town of Berk, now enjoying its new alliance with the dragons, is preparing for its annual winter holiday of Snoggletog. However, that spirit is threatened when all the dragons, except Toothless who needs Hiccup to help him, suddenly fly away for some reason. While Astrid ineffectually tries to salvage the occasion, Hiccup decides to build Toothless a new prosthetic to allow him to fly independently, only to have the dragon take off as well. However, as the holiday approaches, Hiccup finds himself swept up to learn the dragons' secret the hard way and to find a solution to bring them home early.