Mykelti Williamson played Gabriel Maxson in a film adapted from a play that debuted at what theater?
Mykelti Williamson:  In 2016, he portrayed Gabriel Maxson in Denzel Washington's acclaimed film adaptation of August Wilson's play "Fences", reprising his role from the 2010 Broadway revival. Fences (play):  The play was first developed at the Eugene O'Neill Theater Center's 1983 National Playwrights Conference and premiered at the Yale Repertory Theatre in 1985.
Yale Repertory Theatre