The movie is about betrayal and race prejudice in 1950s America.
“It’s brilliant. It’s like why would they make ‘Hamlet’ a movie? Why would they make ‘Death of a Salesman” a movie?
“Because it is some of the greatest writing in the 20th century,” the actor told Reuters.
Pulitzer prize-winning Fences, which opens in U.S. movie theatres on Dec. 25, is the first play by the late influential black playwright August Wilson to be turned into a film.
Denzel Washington and Viola Davis reprise their 2010 Tony-winning roles as egotistical garbage worker Troy Maxson and his long-suffering wife Rose in the intense family drama about lost hope.
The movie was about betrayal and race prejudice in 1950s America.
“There’s an excitement because we knew that this is permanent now. This is forever. So everybody’s coming with their game,” Washington said of adapting Fences to film, which he also directed and produced.
Washington is also involved in filming all 10 of Wilson’s stage plays for TV channel HBO.
With strong reviews, Fences has put Washington and Davis front and centre of a Hollywood awards season looking to redeem itself after the #OscarsSoWhite uproar of the past two years.
Washington, 61, is seen as a leading contender for his third Oscar, while Davis, 51, is regarded by awards pundits as a shoo-in in the supporting actress race.
“Every day was an acting Olympics,” said Davis of the film shoot. "There was no scene where you just walked in and put down a pot.’’
Wilson, who died in 2005, set many of his plays in the pre-civil rights era, charting the experience of African-American working men and women and their struggle for dignity and love.
"He honoured people that literally had been seen as invisible throughout history and he uplifts them as exactly who they are,’’ Davis said.
Stephen McKinley Henderson, who plays Troy’s best friend Jim Bono, said Fences is timeless.
“Great writers write about the capacity of being human. … The politics is just the background of our lives.
“The really important things are the people who are closest to us, not the people who are in some seat of power a long way away.
“So (the play) is always going to speak to you, whatever period you are in,’’ he said.