All-Reviews.com: West Side Story: Review of the movie by Brian Koller.
Allwatchers: West Side Story: Checklist-style 'review' of the film.
Apollo Movie Guide: West Side Story: Review by Brian Webster, links, cast information.
Greatest Films: West Side Story (1961): Detailed review, synopsis and discussion of the film.
IMDb: West Side Story: Cast and credits, plus links.
TV Guide Online: West Side Story: Review, cast, and crew.
West Side Story: From Stage to Screen: A study of the Leonard Bernestein/Stephen Sondheim musical, especially on film. Includes cast and crew credits, song commentary with illustration and MIDI, purchase links, and contact information.