Aliens. Why did it have to be aliens?

Harrison Ford has signed on to star in director Jon Favreau’s (Iron Man) adaptation of Scott Mitchell Rosenberg’s graphic novel Cowboys & Aliens.

Favreau tweeted the news today:

Please stop asking if Harrison Ford is in Cowboys & Aliens. Okay? He is. Please don’t tell anybody.

Set in the mid 19th century, Cowboys & Aliens follows gunslinger Zeke Jackson (Daniel Craig) and Ella Verity (Olivia Wilde) as they set out to stop an alien race from enslaving humankind.

“LOST” co-creator Damon Lindelof wrote the script with his go-to collaborators Alex Kurtzman and Roberto Orci. Steven Spielberg, Ron Howard and Brian Grazer serve as producers.

Cowboys & Aliens goes into production in July. No word on what part Ford will play in the film.