Question: What is the title of a 2002 American animated science fiction comedy-drama film with an illegally-made, genetically-engineered, extraterrestrial lifeform resembling a blue koala and his adopter and best friend who is also its primary protagonist? 

Context articles: Stitch (Disney)
Eternal Sunshine of the Spotless Mind
Stand by Me Doraemon
The Thing (1982 film)
Lilo &amp; Stitch
Treasure Planet
Millennial Women
BrainDead
Max Steel (2013 TV series)
Heroes and Demons

Stitch (also known by his species name/"birth" name Experiment 626, pronounced "six-two-six") is a fictional character in Disney's "Lilo & Stitch" franchise.
 An illegally-made, genetically-engineered, extraterrestrial lifeform resembling a blue koala, he is one of the franchise's two title characters, alongside his adopter and best friend Lilo Pelekai, and its primary protagonist.
 Stitch was created by "Lilo & Stitch" co-writer and co-director Chris Sanders, who also voices him in almost all media that he appears in.
Eternal Sunshine of the Spotless Mind is a 2004 American romantic science fiction comedy-drama film written by Charlie Kaufman and directed by Michel Gondry.
 It follows an estranged couple who have erased each other from their memories, then, started dating again.
 Pierre Bismuth created the story with Kaufman and Gondry.
 The ensemble cast includes Jim Carrey, Kate Winslet, Kirsten Dunst, Mark Ruffalo, Elijah Wood and Tom Wilkinson.
 The title of the film is a quotation from "Eloisa to Abelard" by Alexander Pope.
Stand by Me Doraemon (スタンド・バイ・ミー ドラえもん ) is a 2014 Japanese 3D computer animated science fiction comedy-drama film based on the "Doraemon" manga series and directed by Ryūichi Yagi and Takashi Yamazaki.
 It was released on 8 August 2014.
 It is the Highest Grossing Film of Doraemon Franchise.
 Bang Zoom!
 Entertainment premiered an English-dubbed version of the film at the Tokyo International Film Festival on 24 October 2014.
The Thing (also known as John Carpenter's The Thing) is a 1982 American science-fiction horror film directed by John Carpenter, written by Bill Lancaster, and starring Kurt Russell.
 The film's title refers to its primary antagonist: a parasitic extraterrestrial lifeform that assimilates other organisms and in turn imitates them.
 The Thing infiltrates an Antarctic research station, taking the appearance of the researchers that it absorbs, and paranoia develops within the group.
Lilo & Stitch is a 2002 American animated science fiction comedy-drama film produced by Walt Disney Feature Animation and released by Walt Disney Pictures.
 The 42nd Disney animated feature film, "Lilo & Stitch" was written and directed by Dean DeBlois and Chris Sanders, the latter also starring as Stitch, and features the voices of Daveigh Chase, Tia Carrere, David Ogden Stiers, Kevin McDonald, Ving Rhames, Jason Scott Lee, and Kevin Michael Richardson.
 It was the second of three Disney animated features produced primarily at the Florida animation studio located at Disney's Hollywood Studios (then known as Disney-MGM Studios during production) in Walt Disney World near Orlando, Florida.
Treasure Planet is a 2002 American animated science fiction film produced by Walt Disney Feature Animation and released by Walt Disney Pictures on November 27, 2002.
 It is the 43rd Disney animated feature film.
 The film is a science fiction adaptation of Robert Louis Stevenson's adventure novel "Treasure Island" and was the first film to be released simultaneously in regular and IMAX theaters.
 The film employs a novel technique of hand-drawn 2D traditional animation set atop 3D computer animation.
Millennial Women is a 1978 science fiction anthology, edited by Virginia Kidd, in which all the stories are written by women and have a female character as the primary protagonist.
 The themes which these stories have in common are those of social science fiction: that which is perceived as alien, the uses of language, careers, familial relationships, sexual politics, social constructions of gender, political freedom and equality.
BrainDead is an American political satire science fiction comedy-drama television series created by Robert and Michelle King.
 "BrainDead" stars Mary Elizabeth Winstead as Laurel Healy, a documentary film-maker who takes a job working for her brother Luke (Danny Pino), a U.S. Senator, when the funding for her latest film falls through.
 Assigned as his new constituency caseworker, she discovers that Washington, D.C. has been invaded by extraterrestrial insects which are eating the brains and taking control of people, including members of Congress and their staffers.
 Much of the internal comedy of the series was that in the altered reality of Washington DC politics only a few people noticed.
Max Steel is an American/Canadian CGI–animated science fiction comedy-drama television series co-produced by Mattel Playground Productions, Nerd Corps Entertainment and FremantleMedia Kids & Entertainment.
 It is a re-imagining of its predecessor of the same name, as well as being based on the Mattel action-figure also of the same name.
 "Max Steel" premiered on March 25, 2013, on Disney XD.
"Heroes and Demons" is the 12th episode of the of the American science fiction television series "."
 The episode first aired on the UPN network on April 24, 1995.
 It was directed by Les Landau and written by former "" story editor Naren Shankar.
 Set in the 24th century, the series follows the adventures of the Starfleet and Maquis crew of the starship USS "Voyager" after they were stranded in the Delta Quadrant far from the rest of the Federation.
 In this episode, after a sample of a protostar is brought on board, crewmen start to vanish from a holodeck simulation of Beowulf.
 The Doctor (Robert Picardo), a hologram, investigates and finds that a lifeform was transported to the ship alongside the sample.
 It escaped to the holodeck where it was converting those who entered into energy.
 The Doctor has the samples brought to the holodeck and released, resulting in the lifeform returning the crewmen to their corporeal states.