Oscar-winning screenwriter Dustin Lance Black is reportedly working on an 8-hour scripted miniseries about the gay rights movement for ABC.

Black, who won an Oscar for writing the screenplay to Milk, the 2008 film starring Sean Penn as slain gay rights activist and politician Harvey Milk, will pen the unnamed series and serve as co-executive producer with Laurence Mark (Julie & Julia), according to The Hollywood Reporter.

Credits for Black include HBO's Big Love and the films Pedro (about The Real World's Pedro Zamora) and J. Edgar. He also wrote 8, a play that re-enacts the federal trial challenging the constitutionality of Proposition 8, California's now-ended constitutional amendment that limited marriage to heterosexual couples. Star-studded readings of the play raised millions for the American Foundation for Equal Rights (AFER), which argued the case before the Supreme Court. Black is a founding board member of AFER.