Los Angeles, Filmmaker Quentin Tarantino says Brad Pitt was happy to take off his shirts for a scene in their film "Once Upon A Time... In Hollywood", although the actor is "shy" in real life.

Tarantino discussed the scene in the latest episode of Amy Schumer's podcast "3 Girls, 1 Keith", reports ew.com.

"It was funny because actually in public Brad is kind of shy about things like that," said Tarantino, adding: "At the same time, he knows exactly what time it is. I go, 'So, I'm thinking maybe you unbutton the Hawaiian shirt, and you peel that off, and then peel off the Champion T-shirt'. He was like, 'Really? You want me to go through all that button bulls**t? I'll just take it off in one bit. Go!'"

He continued: "I'm like, okay, this guy knows exactly what time it is. S**t the f**k up and let the master do his job! Even when you see him in the work shed and the way he puts on the leather gloves and puts the wire in his mouth all butch and macho. He just knows what time it is."

Tarantino's "Once Upon A Time In Hollywood" was his love letter to Los Angeles of 1969. The Sony Pictures Entertainment film won commercial success and critical acclaim all over the world.

"Once Upon A Time In Hollywood" is a fictional story of fading stardom told through aging star Rick Dalton (Leonardo DiCaprio) and his stunt double Cliff Booth (Brad Pitt). Tarantino has woven real life stories into the plot with the infamous Charles Manson murders, including actress Sharon Tate, as a backdrop to make it more intriguing. Pitt bagged the supporting actor Oscar for his portrayal of stuntman.