Show Boat (1951)

First, as a screen adaptation of the Broadway play. If a person takes the movie in that way, then he/she will find that this version is dreadfully unfaithful to the B'way original (that is the common complaint about this movie). The 1936 Universal version is generally accepted as the most faithful version (which, really, it is, out of all 3 versions; 1929, 1936, 1951). I cannot go into too many particulars on that version, as I have never seen it. But from what I've read, it generally follows the play scene by scene, with only the ending altered. A few songs were added for that version and one song, "Why Do I Love You?," dropped for running time. Someone please correct me on that if I'm wrong. This 1951 version cuts down the role of Joe and all but eliminates the Queenie character (who actually had a fairly substantial role on stage).
[Please note: the 1929 version is actually a part silent/part talkie screen adaptation of the original novel. After the Kern/Hammerstein play opened, a few songs were added.]

Second, as a movie-musical in its own right...
If one does not take this movie as a screen version of the Broadway musical, it is a lot easier to see where this movie soars. What a movie! Excellent cast, fantastic sets, gorgeous sound, and lush technicolor make this version a feast for both eye and ear. Kathryn Grayson and Howard Keel are both fabulous as Magnolia and Ravenal. Whenever I read about Show Boat, Grayson and Keel are the first people that come to mind. Grayson's singing may sound a little harsh on the ears at times, she's still the best Magnolia. I also prefer Keel's singing to that which I've heard on any of the revival/studio cast albums. And Ol' Man River has never been sung better. William Warfield's breathtaking rendition of the classic song always sends chills up my back, especially during the closing sequences. He became sononymous with the role of Joe as did Paul Robeson and Jules Bledsoe before him. Fabulous. Done in the true MGM fashion, this is not one to be missed. The best!

Note: another reviewer is in error. He states that MGM's Show Boat was shot and released in 4 track stereo, which it was not. The immortal Kern and Hammerstein score was recorded by placing "stem" mics around the recording stage to capture the different orchestral angles, with the vocals recorded on separate tracks, which were combined into a monaural mix down track for use in the film. The film was thus released in monaural. This practice had been in use at MGM since the thirties. By today's standards, to have recorded tracks in this way is considered to have been recording them in monaural, since they were mixed to mono, even though many of these "stem" tracks (where they exist) from the great MGM musicals are being remixed for stereo. True stereo recording in the movies was still a few years away. MGM's first film recorded and released in stereo was "Kiss Me Kate," also starring Keel and Grayson, in 1953.