The Trial of Mary Dugan is a 1941 American drama thriller film directed by Norman Z. McLeod and starring Laraine Day, Robert Young, Tom Conway, Frieda Inescort, John Litel and Marsha Hunt. The screenplay was written by Bayard Veiller based on his 1927 play of the same name. It had previously been made as a 1929 MGM movie starring Norma Shearer in her first all-talking role. There are significant differences in the two movie versions. The 1941 remake was released on February 14, 1941, by Metro-Goldwyn-Mayer.