With a Writers Guild award for Best Original Screenplay in its pocket, "Moonlight" could yet join an exclusive group of three Best Picture winners at the Oscars.
This year, Damien Chazelle's musical comedy drama "La La Land" is considered frontrunner for the Academy Awards' biggest win, the Best Picture Oscar statuette.
From an Oscar perspective, accolades from the Directors Guild and the Producers Guild of America are most significant at predicting which film will then win Best Picture.
"La La Land" has both.
Almost nine times out of ten, either the DGA or PGA pick has gone on to win Best Picture at the Oscars.
Only on three occasions total have either the Directors Guild or Producers Guild failed to have their prestige prize winner collect Best Picture at the Academy Awards.
"Braveheart," "Shakespeare in Love" and "Spotlight" went into the 1996, 1999 and 2016 Academy Awards without the Directors Guild award for Outstanding Director or the Producers Guild award for Best Theatrical Motion Picture, yet each left with the Best Picture Oscar.
What they did have in common was a Writer's Guild Award for Best Original Screenplay. Now co-writer and director Barry Jenkins has one for "Moonlight" too.
Seven other category winners were congratulated by the Writers Guild on February 19, 2017.
"Arrival" took the Best Adapted Screenplay WGA and, like Jenkins, Eric Heisserer must now be considered likely to win the equivalent screenplay Oscar.
The WGA's third film award, for documentary screenplay, went to "Command and Control," examining an accidental yet devastating explosion at a Texan nuclear warhead launch site in 1980.
In television, Donald Glover's "Atlanta" emerged a double winner, receiving the New Series and Comedy Series awards.
"The Americans" won in Drama, while recreated courtroom drama "The People vs. O.J. Simpson: American Crime Story" won Adapted Long Form, and political thriller "Confirmation," also based on real events, won Original Long Form.
It meant that four out of five TV WGAs went to FX network shows, with "Confirmation" being broadcast by HBO instead.