Brad Pitt hopes to continue to work with Sandra Bullock

Speaking to Brazilian presenter Hugo Gloss, Brad said: "Sandy is an old friend. She's a diehard person I could call for favours over the years and I have done many many times and she's always there.

"Her timing was great, she was a great person to have in my ear in a situation like what which is actually kind of intimate. It just worked out really well and she had her film and I got to do a little bit of hers. I think we'll continue to do the same."

Brad was also full of praise for co-star Joey King, 23, who plays hired killer Prince.

He said: "She's a powerhouse. She was just 21 when we were filming. Listen, I consider us pretty sharp but she's the sharpest of us all."

Co-star Brian Tyree Henry added: "She brought so many layers to Prince. You shouldn't like her in this movie but she has so many layers. But then when you call cut she's a goofball and she brings the lightness."

Meanwhile, Joey recently revealed she never expected to land the role of Prince in 'Bullet Train'.

She told independent.co.uk: "I remember auditioning, and I thought to myself: 'Oh that's nice, I'll never get this part but, y'know, I'll give it my best' But I also really wanted this. I had that feeling in my stomach like, 'I have to have this.'

"That's my one connection to Prince. She's really underestimated because of her appearance alone, and I think that's the thing that I, personally, feel. Otherwise, she's just a sociopath and a b****."