Quentin Tarantino has defended the portrayal of Bruce Lee in his new film.
There are criticisms Lee is written as "arrogant" in Once Upon a Time in Hollywood.
Shannon Lee, Bruce's daughter, described the portrayal as "a mockery".
At a press junket in Moscow, Tarantino defended his version of Lee.
"Bruce Lee was kind of an arrogant guy," said Tarantino.
In the film, Lee claims he could defeat boxer Muhammad Ali .
This has been rubbished by Lee's training partner Dan Inosanto.
"Bruce Lee... worshipped the ground Muhammad Ali walked on." Tarantino responded in Moscow, claiming otherwise: "Not only did he say that... "... but his wife, Linda Lee, said that in her first biography I ever read.
She absolutely said that." In the controversial scene, Lee (Mike Moh) fights stuntman Cliff Booth (Brad Pitt).
Tarantino defended the match-up, saying Booth is a former special forces soldier.
"He has killed many men in World War II in hand-to-hand combat.
He is a killer".