The Mellow Manor Productions, Inc. collection spans the years 1961-2002 (bulk 1985-1997) and encompasses 403 film items. The collection consists of 35mm and 16mm pre-print, sound, and print elements for over 100 animated short films submitted for the Spike and Mike Classic and Sick & Twisted Festivals of Animation. Significant titles in the collection include Brad Bird's "Family Dog" (1988), Bill Plympton's "One of Those Days" (1988), Eric Fogel's "Adventures of Mutilator: Hero of the Wasteland" (1990), and the Academy Award winning "Bob's Birthday" (1994) by David Fine and Alison Snowden. Student Academy Award winning films represented include Joe Murray's "The Chore" (1989) and Peter Hixson's "Five Female Persuasions" (1992). The collection also contains numerous shorts created by animators while attending the Animation program at CalArts, including Cindy Banks' (also known as Cindy Morrow) "Thanks for the Mammaries" (1992) and "Finger Food" (1993) as well as Craig McCracken's "No Neck Joe" shorts that became a staple of the Sick & Twisted Festival.

An international presence was an integral part of the Spike and Mike Festivals, as demonstrated by the collection's comprisal of animated films from 16 countries. Select foreign titles include Teresa Lang's "License to Kill: Part MCMX" (1990) and "Teddy's Revenge" (1993) from Canada, Nick Donkin's "Reaper Madness" (1990) from Australia, Gábor Homolya's "Western" (1990) from Hungary, Ken Lidster's "Balloon" (1991) from the United Kingdom, Takun Furukawa's "Tarzan" (1990) from Japan, and the Italian experimental short "La Pista" (1991) by Simona Mulazzani & Gianluigi Toccafondo.

Mellow Manor Productions, Inc. was founded in the early 1970s in Riverside, California by Craig "Spike" Decker and Mike Gribble with the aim of promoting underground bands along with arranging special screenings of cult and horror films, often paired with vintage animated shorts. The company is named after the Victorian house in Riverside where Decker, Gribble and others communally resided.

In 1977, Decker and Gribble became fully dedicated promoting independent animated shorts from around the world. Spike and Mike's Festival of Animation (later named the Classic Festival of Animation) debuted in La Jolla, California and would go on to tour annually in cities and on college campuses throughout the United States and Canada, theatrically showcasing early films of Tim Burton, John Lasseter, Nick Park, Bill Plympton, Will Vinton, Brad Bird, and many others. Spike and Mike also produced and premiered many student films, including those of Pixar creatives Pete Docter and Andrew Stanton.

In 1990, Spike and Mike's Sick & Twisted Festival of Animation was established as an unrated, adult-themed version of the program and would serve as the initial platform for films such as Mike Judge's BEAVIS AND BUTTHEAD shorts and the original uncensored South Park short THE SPIRIT OF CHRISTMAS by Matt Stone and Trey Parker.

Decker would continue to serve as a promoter of the festivals following Mike Gribble's passing in 1994. Curated versions of the festivals were also packaged and released by Mellow Manor Productions on home video. Both the Classic and Sick & Twisted programs ran steadily into the early 2000s before switching to alternative distribution forms on television and digitally.