Brewster's Millions (1945 Allan Dwan)

Dennis O'Keefe, Helen Walker, Eddie 'Rochester' Anderson, Gail Patrick, and Mischa Auer appear, from the novel by George Barr McCutcheon, written for the stage by Winchell Smith and Byron Ongley and screenwritten by Siegfried Herzig, Charles Rogers and Wilkie Mahoney, shot by Charles Lawton.

A one joke film, but executed by Dwan with gusto.

Filmed first in 1914, with Fatty Arbuckle in 1921, as Miss Brewster's Millions with Bebe Daniels in 1926, with Jack Buchanan in the UK in 1935 and most recently, Richard Pryor and John Candy in 1985. I think it's been done enough, already (though I see a Brewster's Billions in the making).