Brad Pitt revealed the reverence he has for Lewis Hamilton as he described him as a “gem of a human being” at the world premiere of the new ‘F1’ movie. The pair collaborated on the upcoming film that is set to hit the screens internationally on Friday . Created in tandem with the FIA , the governing body of Formula One , the seven-time world champion is credited as a producer on the film, with his contributions labelled “invaluable” by the Hollywood icon and director Joseph Kosinski. Pitt and Hamilton posed together on the red carpet for the film’s world premiere in New York City last week and the actor admitted the movie was destined to be made once the Brit came aboard the project. Discussing the help Hamilton offered in terms of the realities of racing being shown, the 61-year-old waxed lyrical about the Ferrari star’s kind personality and said he understood why he’s been so successful in a racing career that is approaching 20 years at the highest level. “When Lewis came on, then it was a go. And it was a simple phone call for me,” Pitt said. “I remember we sat down that first time – and that’s less about racing and more about just sitting with a gem of a human being. There’s a reason… champions are made, I think, beyond just talent. “It’s also how they carry themselves and how they face the world . And he is just a gem and a gent. Really, really. And then you come to what the expertise is that he has brought to this thing. “He would give us like 12 hours in a day. We’d just sit and just query and throw questions at him – ‘What about this?’ – and he really helped shape us, shape this film.” Pitt was also present at the film’s premiere in Leicester Square earlier this week, where he was joined by Tom Cruise as he continued detailing just how much of a role Hamilton had in the making of the film. ” Lewis Hamilton is our producer, and his knowledge has been so immensely helpful,” he said to Sky Sports . “He’s been keeping us straight going, ‘No, no, no, that doesn’t fly. It needs to go this way.’ And his knowledge, it’s so incredible. “Like right down to the sound, he can actually pick out and go, ‘No, no, That’s turn 12. That’s not turn 16. You need more reverb on the straight here, you hear this massive reverb into one.’ Like he’s that specific. It’s incredible.” The presence of the 105-time Grand Prix winner was so integral that Pitt revealed he signed onto the film after the Brit. “Joe [Kosinski] went and got Lewis before he got me,” he explained. “He said, ‘If I can have that kind of backing and that kind of support, then I think we can get to what I know I can do with the cameras and the car.'”