Sigourney Weaver has confirmed that production on James Cameron’s four “Avatar” sequels won’t begin until the Fall, a little later than the previously-announced starting month of August.

Speaking with Heat Vision to promote Walter Hill’s gender-swap hitman revenge thriller “The Assignment,” Weaver says:

“We’re starting! We’re starting training, and we’re starting – hm, I probably can’t say anything. We will be actually shooting it by the fall. I’m telling you, these scripts are so amazing. I’m not worried about [disappointing fans] at all. Am I worried about how we’re going to bring them to life? Yes, because they’re so ambitious. They’re so worth it. They’re well worth waiting for. I’m not worried about that at all. We’re trying to get it done as quickly as possible.”

The comments come in the wake of Cameron saying back in January he’s started the process of active prep and will begin motion capture work at the end of the Summer.

Sam Worthington, Zoe Saldana and Stephen Lang are also confirmed to be returning alongside Weaver, while the release dates for the films are now in flux following the second “Avatar” being delayed from its December 2018 berth.