10/25/2012 at 04:00 PM EDT
Now that Robert Pattinson
and Kristen Stewart have reunited
, the actor should have plenty to smile about.
But there's one thing that's bringing a tear to the Twilight
star's eyes. (And don't worry – Stewart seems to be in the clear.)
Marley & Me
, the 2008 tearjerker about a life-changing dog starring Jennifer Aniston
, Owen Wilson
and Eric Dane, makes him cry.
"I was so surprised. I was like devastated," Pattinson, 26, told Australia's Kyle and Jackie O Show
while promoting The Twilight Saga: Breaking Dawn – Part 2
. "I watched it at 3 o' clock in the morning on one of the press tours for one of these films, and I never want to see it again."
He added: "It's horrible. It's like looking at war footage or something, like genocide footage."
After spoiling the emotional ending, he continued, "I can't take it. I hate people, but I love dogs." (Just ask his rescue pooch
He's not the first one to show his soft side during the movie. Jon Hamm
confessed to PEOPLE in 2010
, "Holy cow. If you have a dog, forget about it. It will crush you."