Bystander cellphone video provided to the celebrity website TMZ.com shows actor Nicolas Cage physically restraining Neil before police arrived.
Las Vegas police Officer Michael Rodriguez said Friday the incident happened a little before 5:30 p.m. Thursday outside the Aria resort.
He confirmed that Cage was at the scene, but wasn’t accused of a crime.
Police issued the 55-year-old Neil a misdemeanor battery summons and he’s has a June 17 court date. He wasn’t jailed.
His attorney, David Chesnoff, says he’s investigating the allegation and the public shouldn’t prejudge the situation.
A spokesman for Cage didn’t immediately respond to messages.