There's bad casting and good casting, to be sure, and sometimes there's strange casting. But sometimes, out of left field, someone agrees to act in a movie with a certain director, and you just can't see the connection. Sometimes this works out, and other times it does not.
1. D.W. Griffith & W.C. Fields, Sally of the Sawdust(1925)
Yes, the great, curmudgeonly comic with the bulbous nose, the penchant for booze and a curdling disdain for children and animals found himself working with the famously Victorian silent-era film pioneer. Griffith's career was on the way down, and Fields' was on the way up, and they met in the middle for this actually rather delightful comedy-drama. Fields occupies the co-starring role (opposite Carol Dempster) as a carnival cardsharp.