Actor Brad Pitt, who was attacked by Ukrainian prankster Vitalii Sediuk at the premiere of Angelina Jolie's latest film "Maleficent", says the man will get stomped for his act.

The 50-year-old actor subsequently secured a temporary restraining order against Sediuk.

Speaking about the incident for the first time, Pitt said: "I was at the end of the line signing autographs, when out the corner of my eye I saw someone stage-diving over the barrier at me."

"I took a step back; this guy had latched onto my lapels. I looked down and the nutter was trying to bury his face in my c*****, so I cracked him twice in the back of the head - not too hard - but enough to get his attention, because he did let go," he said.

"I think he was then just grabbing for a hand hold because the guys were on him, and he reached up and caught my glasses," he added.

Pitt was horrified to hear Sediuk, who was placed on three years probation after he pleaded "no contest" to battery and unlawful activity charges stemming from the attack, also attempted to put his head under actress America Ferrera's dress at the Cannes International Film Festival in May.

"I don't mind an exhibitionist, but if this guy keeps it up he's going to spoil it for the fans who have waited up all night for an autograph or a selfie, because it will make people more wary to approach a crowd," he said.

"And he should know, if he tries to look up a woman's dress again, he's going to get stomped," he added.

Along with Sediuk's probation, he was also ordered to perform 20 days of community labour, undergo a year of psychological counselling and was banned from attending all celebrity events in the future in court here May 30.