Writer/director Christopher Nolan has been pretty tight-lipped about his latest project. We've seen tantalizing glimpses of stars John David Washington, Robert Pattinson, and Elizabeth Debicki in the film's trailers, while cars seem to un-crash as time moves backward, or ships break backward in ocean water. The movie has been called an espionage thriller and "action epic," but what's actually happening in it?

Nolan and the cast give us a few more hints in a new interview from Entertainment Weekly.

According to interviews, the cast didn't even know what they were signing up for until they had their parts. Debicki had to visit the Warner Bros. lot in Burbank to sit in a room and read the script.

A script, by the way, that Nolan said he's been working on for "six or seven years."

TenetCredit: Warner Bros.

Another star, Kenneth Branagh, described the story in slightly less vague terms than we've been hearing so far.

"It’s an espionage piece that’s dealing with a global threat to the world,” Branagh told EW. “A nuclear holocaust is not the greatest disaster that could befall the human race."

Nolan clarified that this is not actually a time-travel story. It plays with a physics theory called "time inversion."

"This film is not a time-travel film," Nolan told EW. "It deals with time and the different ways in which time can function. Not to get into a physics lesson, but inversion is this idea of material that has had its entropy inverted, so it’s running backwards through time, relative to us."

Nolan has remained faithful to his filmmaking process on this one, too. It filmed in seven different countries, and he shot many effects practically, including the blowing up of a Boeing 747, which was purchased for this money shot alone.

Tenet - Boeing 747Credit: Warner Bros.

In EW, Nolan reveals that they built an enormous outdoor set in the California desert, too, creating a huge abandoned city for a car chase scene and filling it with hundreds of costumed extras.

“The set would certainly rank as one of the largest-scale outdoor builds of all time,” Nolan told EW. “It’s colossal.”

Be sure to check out the rest of the interview for more from the cast and crew!

What's next? Read more about Nolan's new movie

Will Tenet save movies? Do you think it was wise to push the release by just two weeks? Why is this movie such a big risk to Warner Bros.?

Does this get you excited to see Tenet? Will you be returning to movie theaters to see it, or will you hold off? Let us know in the comments!

Source: Entertainment Weekly