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Will Smith slapped a Ukrainian reporter across the face at the Moscow premiere of Men in Black 3 after the reporter tried to kiss him on the lips.

In the incident, the reporter hugs him before getting too close for comfort.

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"C'mon man, what the hell is your problem buddy?" Smith says before slapping him. "He tried to kiss me in my mouth. He's lucky I didn't sucker punch him," he tells a fellow reporter directly after.

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Despite the incident, Smith took everything in stride, doing more red carpet interviews and hugging and signing autographs for fans for an hour.