A lot has changed since Mark Hamill starred in the first "Star Wars" movie in 1977 and now. For one, spoilers are a pretty big deal.

In an interview with Entertainment Weekly about his History drama series "Knightfall," Hamill teased a future, high-profile project that he can't announce yet. And that led him to describe the security measures that writer/director J.J. Abrams has employed for "Episode IX."

"You know how it is these days, every time you sign NDAs. I remember back when I read the first 'Star Wars' [script], I was like, ‘Wow, that’s the goofiest thing I’ve ever read.’ I gave it to my best friend to read, and I said, ‘What do you think of it?’ He said, ‘It’s really wild, it’s crazy, can I give it to Meredith?’ ‘Sure, go ahead.’ It went around to all my friends," Hamill reflected.

"Of course back then nobody cared. Nowadays it’s like working for some secret deep state government organization, like being in the CIA. They’re going to send rewrites over to Prague on this dark red paper that gives you a headache to read.”

Abrams used that dark red paper for scripts while filming "The Force Awakens." The darkness of the paper makes it nearly impossible to photocopy. However, the director has upped the security even more when it comes to "Episode IX" scripts.

“They’re going to fly [the rewrites] over with somebody from the company,” Hamill noted. “They’re going to come and give it to me and wait for me to read it before I give it back. So no pressure! You can’t even keep it overnight. But that’s the way it is now.”

After the events of "The Last Jedi," fans are undoubtedly very curious about the role Hamill will play in "Episode IX." Will he appear as a Force Ghost? In a flashback? Well, if Abrams and team have their way, they won't find out until the movie hits theaters next December.