Gaby is a 1956 drama film made by MGM. It is the third version of the 1930 play Waterloo Bridge, previously made into films Waterloo Bridge (1931) and Waterloo Bridge (1940). It is the only version of the play made in color, and the least faithful to it. The title, the names of the main characters, and plot details were all changed. Unlike the 1931 and 1940 versions, this film ends happily.