Whom did author Margaret Mitchell suggest to MGM to play Rhett Butler in Gone With the Wind (1939)?

Groucho Marx was suggested to MGM to play Rhett Butler in Gone With the Wind, but only in jest.

What is the name of the lover in D. H. Lawrence’s Lady Chatterley’s Lover (1928)? The name of the lover in D. H. Lawrence's Lady Chatterley's Lover was Oliver Mellors, gamekeeper for Lady Chatterley's husband.
What poem is the source of the title of Robert Penn Warren’s World Enough and Time (1950)? Andrew Marvell's "To His Coy Mistress" (1681) is the source of the title of Robert Penn Warren's World Enough and Time.
Who first played Dr. Kildare in Interns Can’t Take Money? Joel McCrea first played Dr. Kildare, in Interns Can't Take Money (1937).
Did Dorothy Parker write any screenplays? Dorothy Parker collaborated on several screenplays, including A Star Is Born (1937), The Little Foxes (1941), Saboteur (1942), and The Fan (1949).
Who is credited with the screenplay for Citizen Kane (1940)? Herman J. Mankiewicz and Orson Welles were credited with the screenplay for Citizen Kane (1940).
How many of Bing Crosby’s sons have killed themselves? Two of the four of Bing Crosby's sons have killed themselves. Lindsay Crosby shot himself in 1989; Dennis Crosby shot himself in 1991.