Primary Sources (much paraphrasing, many thanks):
http://www.mfiles.co.uk/film-history.htm
http://en.wikipedia.org/wiki/2001:_A_Space_Odyssey#Music
Other sources:
http://www.en.wikipedia.org/wiki/Dolbyhttp://lcweb2.loc.gov/ammem/edhtml/edmrrg.html
http://www.filmsound.org/film-sound-history/
http://www.geocities.com/Hollywood/Academy/4394/altman.html
http://www.filmtracks.com/titles/total_recall.html
http://www.architecture.uwaterloo.ca:16080/faculty_project/terri/443_f05_2.html