John Huston directed both of 1948's Best Supporting Oscar Winners in two different films - Claire Trevor for KEY LARGO and his father, Walter, for TREASURE OF THE SIERRA MADRE. I can't think of anyone else who's done this.
"Stone-cold sober I find myself absolutely fascinating!"---Katharine Hepburn
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Yeah it's interesting and I wish it would happen again, except the odds are against it because most major film directors don't do two movies a year anymore. But maybe an up-and-coming director will.
"Did you make coffee? Make it!"--Cheyenne.
Thank you for pointing that out, Harold_Robbins.
"No, I don't like to cook, but I have a chicken in the icebox, and you're eating it."