A SWAT team has raided the set of Brad Pitt's movie 'World War Z'.

The Special Weapons and Tactics unit was called to a warehouse in Budapest holding props for the horror apocalypse movie where they discovered and seized 85 weapons - including AK-47s and sniper rifles - which all contained live ammunition.

A police spokesperson told gossip website X17 the collection of assault rifles were a "disaster waiting to happen" and claimed an accident could easily have occurred with the loaded weapons.

This is not the only near disaster averted on set, 47-year-old Brad saved an extra from being trampled during a battle scene for the film in Glasgow, Scotland with 700 extras when she fell to the ground.

The quick-thinking actor scooped her up in his arms and put her back on her feet before she faced the risk of getting badly injured.

A source said: "Lots of people hurt themselves and Brad came to the rescue of one woman who slipped. I don't think she could believe it when Brad picked her up.

"He didn't have time to speak to her as it was mid-shoot. But she said afterwards how grateful she was, despite having a grazed knee."

Although the actress had her very own Hollywood hero to save her, many of the other extras weren't so lucky and were left with injuries following the dangerous battle scene.

The source added: "Loads of extras suffered bumps and scrapes. One extra playing a soldier was even hit by a moving car and ended up on the vehicle's bonnet, but fortunately he escaped unhurt."