My definition of distribution

The distribution of a film is the process through which a movie is made available to watch for an audience by a film distributor. This task may be accomplished in a variety of ways; for example, with a theatrical release, a home entertainment release in which the movie is made available on DVD or a television program for broadcast .

source: http://en.wikipedia.org/wiki/Film_distribution

http://en.wikipedia.org/wiki/Film_distribution

http://entertainment.howstuffworks.com/movie-distribution.htm

http://www.bbc.co.uk/filmnetwork/filmmaking/guide/distribution/distribution

http://www.launchingfilms.com/

http://www.britinfo.net/cinema/ldistributors.htm