Avatar star Sam Worthington has been arrested in New York City for punching a photographer after the man kicked Worthington's girlfriend in the shin, according to police.
The 37-year-old Australian actor was arrested on an assault charge following the incident on Sunday evening.
He was released and is due back in court on Wednesday. Police did not say what caused the scuffle.
The photographer, 37-year-old Sheng Li, was arrested on charges of reckless endangerment, assault and harassment.
He is being held pending arraignment.