A DAY AT THE RACES (1937, USA, 111m, U) **** Comedy, Sport dist. Metro-Goldwyn-Mayer (MGM); pr co. Metro-Goldwyn-Mayer (MGM); d. Sam Wood; w. Robert Pirosh, George Seaton, George Oppenheimer (based on an original story by Robert Pirosh and George Seaton); pr. Irving Thalberg, Lawrence Weingarten, Sam Wood, Max Siegel; ph. Joseph Ruttenberg (B&W | 1.37:1);…