Pitt: 'World War Z' Is 'Most Intense' Summer Film

When ET caught up with Brad Pitt at the London premiere of World War Z, the actor made a bold claim about the apocalyptic film.

"It's the most intense film you'll see all summer," the 49-year-old actor said.

Watch the video above for more from Pitt on World War Z, in theaters June 21, and his reaction to wife Angelina Jolie's recent double mastectomy.