“Birdman” star Michael Keaton is in negotiations to join “Kong: Skull Island” for Universal and Legendary.

The King Kong origins project is set to open on March 10, 2017, and will be released in 3D.  The studio and Legendary unveiled “Skull Island” during Comic-Con in July, then disclosed in September that Tom Hiddleston was on board to star with Jordan Vogt-Roberts directing.

Universal decided last month to move “Skull Island” back four months and brought on J.K. Simmons to co-star.

John Gatins (“Flight”) and Max Borenstein (“Godzilla”) wrote the script, about a team of explorers who venture deep inside the primordial island that is King Kong’s home. Legendary said the story honors the foundations of existing King Kong lore created in the iconic 1933 film.

Legendary’s Thomas Tull and Jon Jashni will produce; Alex Garcia exec produces.

Keaton is repped by ICM and Anonymous Content. The news was first reported by Deadline.

UPDATE, 8:58 p.m. – Keaton’s deal has closed.