Leonardo DiCaprio stepped in to defend his friend during a row at a New York bar.
The Titanic star was drinking with club promoter Danny A and a group of pals on Sunday night (23.09.07) at swanky venue Upstairs when a fellow partygoer started shouting at Danny.
An onlooker told the New York Daily News: "Danny was getting into an altercation by the bar with a regular patron. Leo jumped up from his seat and stood right behind Danny. He was just glaring at this guy over Danny's shoulder, with his posse behind him."
The reveller immediately backed down, allowing Leonardo and Danny to continue partying in peace.
Danny has played down the incident, saying: "I have security. I don't use my friends."
Meanwhile, it was recently revealed Leonardo wanted to play Hugh Hefner in a movie about the Playboy icon's life.
The Blood Diamond star had reportedly spoken to the 81-year-old adult magazine editor about making a biopic based on his extraordinary life.
A source said: "Leo and Hugh have been friends for a long time and Leo has always been interested in Hugh's life story. Leo thinks it would make a great movie and Hugh would love Leo to do it - on condition Hugh is alive to see it."