Apollo Movie Guide: Jigsaw A negative review, cast information, and other details. http://apolloguide.com/mov_revtemp.asp?CId=1853

IMDb: Jigsaw Cast information. http://us.imdb.com/title/tt0284220/

University of San Diego: The Jazz Singer (1927) History Department page with production and cast information, links, and references. http://history.sandiego.edu/gen/filmnotes/jazzsingernotes.html