I was 21, when I heard the story that inspired this [thriller Allied], and I wasn't even a screenwriter then.

There [in Allied] was depicting London in the war, as well, and doing that in a way where you see something that you don't normally see, which is how hedonistic it was. In reality, that's what was going on. But, all of it worked.

I always thought it would never happen. And then, it became possible. In between commissions, I wrote it as an original screenplay [Allied].

The story [of Allied ] itself is the story I wrote, and that's what's great about Bob [Zemeckis ]. You have meetings, but it's meetings for clarity, not to change what they're saying or doing. He takes what's on the page and executes it so brilliantly.

There [in Allied] were things that were written that were cut, and things that were shot that were cut, but if the film works, they are erased from memory.

I read more and more and I came across this character, Caroline Weldon. Sometimes in history, you find these people that no one would dare create. They're too mad.

What I wanted to do [in Allied] was get two characters who fall in love for real, across the barricade, and then it transcends the war.