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Tom Cruise, Cameron Diaz survive stampede on movie set

It’s no bull — that’s really Tom Cruise and Cameron Diaz riding for their lives from an angry herd in Spain yesterday.

The Hollywood heavyweights were bravely doing their own stunt work while filming a scene from for “Knight & Day.”

They rode on a motorcycle while gun-toting “villains” chased them — along with live bulls charging through the streets, as in the famous annual festival in Pamplona.

Cruise and Diaz were facing real danger.

Just days before, seven of the bulls injured two people who were passing by the set in Cadiz when the beasts escaped from their holding pen.

The bull that reportedly led the breakout and started the stampede was booted from the set.

Despite the danger, Cruise is determined to do is own stunts, and Diaz says he’s great at it.

“If he wasn’t Tom Cruise the movie star, he would be the best stuntman in the business. He’s phenomenal. What he does is, like, crazy,” she told “Entertainment Tonight” earlier this month, when the flick was filming on another location in Boston.

“When Tom was on top of the car, and I’m inside the car going, ‘Ahhh! Ahhh!’ and he’s on the hood of the car flying through the air, you know, cabled to a car, jumping 20 feet across — I’m like, ‘I want an action scene, you guys! I wanna fight! I wanna be on the hood of a car! Write it! Just write it in somewhere!’ ”

“Knight & Day,” a thriller about a fugitive couple, is reportedly already costing double its $90 million budget.

And the running of the bulls, which delayed shooting for days, just helped to jack up the price even further.

Cruise’s last film, “Valkyrie,” which cost an estimated $75 million to produce, grossed an underwhelming $83 million in the United States.

todd.venezia@nypost.com