This was a finished movie.
So how did they do that?
That was achieved with some rewrites, the only credited one coming fromWhiplashwriter-director Damien Chazelle.

Credit: Michele K. Short
That short got Trachtenberg into a lot of rooms, including one at Bad Robot.
But when that project stalled out, Trachtenberg foundValencia.
Maybe this was the idea from the beginning and I was late to the equation, Gallagher says.
Shoot discreetly
During the 36-day shoot in New Orleans,Valenciagot the full Bad Robot treatment.
You dont want this getting out, Mary Elizabeth Winstead says.
That was very clear to me from the get-go.
Keep details hidden until last moment
It wouldnt be enough to keep10 Cloverfield Lanea secret.
Winstead learned the final title of the film hours before the trailer drop only after a call from Trachtenberg.
We kept it quiet because we knew we wanted to try something unusual, Abrams says.
Something unusual doesnt always work, but at least its unusual.