Denzel Washington and Stephen Colbert nerd out over how to perform Shakespeare

Denzel Washington is about to add another instalment of Shakespeare to his long career of it, in Joel Coen's upcoming film The Tragedy of Macbeth out Dec. 25.

Paying no heed to superstition over saying the word "Macbeth" in a theatre, the actor has appeared in plenty of the Bard’s work before, including Othello, Richard II,...