Cruz Beckham gains insight into dad David Beckham's greatness after Netflix documentary

Cruz Beckham gained some insight into his father David Beckham's sports abilities through Netflix's documentary "Beckham" chronicling the football legend's heyday.

Victoria Beckham discussed her 18-year-old's response to "Beckham" with Allure in an interview that was released on Thursday.

“Cruz, our youngest son, said, ‘Wow, I had no idea Dad was so good at football,’ ” the former pop star, 49, said with a smile, adding, “It made me laugh, when I come up on the screen: ‘David Beckham’s wife.’ Brilliant.”

The four-part documentary takes viewers on a historical tour to demonstrate how the 48-year-old former star of Manchester United Football Club rose to become regarded as one of the best players in sports history.

Remarkably, the documentary's director Fisher Stevens — a self-described football fan — admitted that, like Cruz, he first failed to recognise David's brilliance in an October interview with People.

Stevens's admiration for the star only increased as he started gathering film.

“He wasn't what I expected at all. He was so open. He's like, I'm ready. I want to tell my story before someone else does. And then I started doing research and I was like, ‘Jesus, this guy's life is nuts. Nuts.’ I had no idea. And then when I met with him and Victoria, I was like, oh my God, they're going to be fun. They're going to be good. They're going to be fun and they're going to be difficult and it's going to be great,” the filmmaker continued.