United Kingdom, July 11 -- Don Cheadle has said starring in the Broadway revival of Proof has deepened his understanding of how grief can leave families struggling to understand one another.

The Hotel Rwanda and Crash star, 61, is currently appearing as Robert in David Auburn's Pulitzer Prize and Tony Award-winning drama at the Booth Theatre in New York, and the Oscar-nominated actor has now reflected on the play's themes ahead of the production's final performances.

Don made the remarks when he joined co-stars Ayo Edebiri, Jin Ha, Adrienne Warren and Project Healthy Minds founder and chief executive Phil Schermer for a post-show discussion attended by People.

Reflecting on the central conflicts in the play, Don said each character bel...