Milk screenwriter Dustin Lance Black has confirmed that Leonardo DiCaprio will play FBI director J. Edgar Hoover in an upcoming biopic.

Speaking to all-things-film website, Black also said he has completed the movie's script and filming was set for early next year.

On Wednesday, New York Magazine reported that Joaquin Phoenix is being pursued to play Hoover's alleged lover, Clyde Tolson.

The film will be helmed by legendary actor-director Clint Eastwood.

Black, who is openly gay, also discussed what sets Hoover apart from Milk, the Gus Van Sant biopic about Harvey Milk, the first openly gay politician to be elected in the United States.

Hoover is not as linear and traditional as Milk – but it didn't need to be. It was important that Milk be that. People know Hoover – or think they know Hoover – and that's great as a writer because you're free as a writer to explore other stuff. People didn't know Milk, so I think it needed a more traditional structure.”

Hoover vehemently denied he was gay, but willed his estate to Tolson, whose grave rests yards from Hoover's in the Congressional Cemetery. Other evidence that Hoover was gay includes the fact that many of his closest friends were closeted men. Rumors that Hoover was a crossdresser persist to this day.