Top 3 Roles?
It Happened One Night
Gone With the Wind
Mutiny on the Bounty
That's enough to make a career, then add the Misfits much later. He was a True Star for a period, and had a great, serious and ironic delivery of his lines that was deadly.
shareBounty, then GWTW, then either It Happened One Night or Wife vs. Secretary.
I'm not much of a fan outside of those four films, although I admit that he had immense charisma.
It happened one night
Gone with the wind
The Misfits