Good news... The screenwriter's guild industrial action is winding up and the movie now has a green light to crank up.
The delays have probably helped in some ways to ensure more thorough preparations.
The movie will focus a lot more on the struggle by Barnes Wallis to overcome opposition to his idea. I think you'd be surprised how sensitive Christian is to the historic identities.
Weta workshops have actually built a life sized replica of the bouncing bomb and it's release mechanism.