The estate of “Tonight Show’s” most celebrated host Johnny Carson finally has given the go-ahead for a feature film about his life.

Actor/comedian Charlie Callas during an interview with host Johnny Carson on November 28, 1979. (Joey Del Valle/ASSOCIATED PRESS)

It’s going to be based on the upcoming book “Carson the Magnificent: An Intimate Portrait,” written by Bill Zehme, who wrote that Esquire cover story about how Carson noting the 10th anniversary of his vacating the late night gig. Zehme was a consultant, and appeared in the “American Masters” documentary “Johnny Carson: King of Late Night” PBS aired last May.