United Kingdom, Sept. 18 -- Paul Newman's family have paid tribute to Robert Redford following his death.

The Hollywood legends starred alongside each other in the films Butch Cassidy and the Sundance Kid and The Sting, with Newman's daughter Nell describing their relationship as "a movie friendship that blossomed into a more serious friendship".

She told People: "They had two great movies together, and that was a really strong bond. I think that's what bought them together."

Nell also reflected on how Redford - who passed away aged 89 on Tuesday (16.09.25) - was a "good influence" on her father, who died at the age of 83 in 2008, in their shared interest on environmental matters.

She said: "I think he was also a real catalyst in Dad'...