In the field of epistemology, the problem of the criterion is an issue regarding the starting point of knowledge. This is a separate and more fundamental issue than the regress argument found in discussions on justification of knowledge.

American philosopher Roderick M. Chisholm in his Theory of Knowledge details the problem of the criterion with two sets of questions:

1. What do we know? or What is the extent of our knowledge?

2. How do we know? or What is the criterion of knowing?

An answer to either set of questions will allow us to devise a means of answering the other. Answering the former question set first is called particularism, whereas answering the latter set first is called methodism. A third solution, found untenable by many philosophers^{[citation needed]} for its inadequacy to give explanation is skepticism. A skeptic will proclaim that since one cannot have an answer to the first set of questions without first answering the second set, and one cannot hope to answer the second set of questions without first knowing the answers to the first set, we are, therefore, unable to answer either. This has the result of our being unable to justify any of our beliefs.

The Criterion Collection (est. 1984) is a video-distribution company that sells "important classic and contemporary films" to film aficionados. The Criterion series is noted for helping to standardize the letterbox format for widescreen films, bonus features, and special editions for home video. Criterion is also known for making great efforts to restore and clean all films released on their label.

The Criterion Collection company was founded in 1984 by Robert Stein, Aleen Stein, and Joe Medjuck, who later were joined by Roger Smith. In 1985, the Steins, William Becker, and Jonathan B. Turell founded the Voyager Company, to publish educational multimedia CD-ROMs (1989–2000), during which time, The Criterion Collection became a subordinate division of the Voyager Company. In March 1994, Verlagsgruppe Georg von Holtzbrinck GmbH bought 20 percent of Voyager for US$ 6.7 million; the 4 founders each retained a 20 percent owner’s share.

In 1997, the Voyager Company was dissolved (Aleen Stein founded the Organa LLC CD-ROM publishing company), and Holtzbrinck Publishers sold the “Voyager” brand name, 42 CD-ROM titles, the Voyager web site, and associated assets, to Learn Technologies Interactive, LLC (LTI). Robert Stein sold 42 Voyager titles to LTI from his Voyager–Criterion company share. The remaining 3 partners, Aleen Stein, William Becker (President) and Jonathan Turell (CEO) owned The Criterion Collection company, which has a business partnership with Janus Films, and had one with Home Vision Entertainment (HVE) until 2005, when Image Entertainment bought HVE.

Peter Lindsay Weir, AM (born 21 August 1944) is an Australian film director. After playing a leading role in the Australian New Wave cinema with his films such as Picnic at Hanging Rock, The Last Wave and Gallipoli, Weir directed a diverse group of American and international films—many of them major box office hits—including the Academy Award nominees Witness, Dead Poets Society, Green Card, The Truman Show and Master and Commander.

Weir was born in Sydney, the son of Peggy (née Barnsley) and Lindsay Weir, a real estate agent. Weir attended The Scots College and Vaucluse Boys' High School before studying art and law at the University of Sydney. His interest in film was sparked by his meeting with fellow students, including Phillip Noyce and the future members of the Sydney filmmaking collective Ubu Films.

After leaving university in the mid-1960s he joined Sydney television station ATN-7, where he worked as a production assistant on the groundbreaking satirical comedy program The Mavis Bramston Show. During this period, using station facilities, he made his first two experimental short films, Count Vim's Last Exercise and The Life and Flight of Reverend Buckshotte.