Douglas fondly recalled the days he spent hanging out with young Brolin at the wildlife station his late mother Jane Cameron Agee ran in Santa Barbara, California and the two actors spent time between takes laughing about the old days.
Douglas remembers, "Josh and I lived together in the same town in Santa Barbara, California and his wonderful mother was an extraordinary lady, and she had a collection of wild animals, ones that she helped save and nurture, like a lion.
"I'd go to Josh's house and it would be like going over to nobody's house you've ever been in before. He was surrounded by these cages."
Brolin chuckles, "My mum took the animals away from those who had illegally taken them out of the wild and she had those people jailed. She worked with fish and game officials.
"My job, as a kid, was to feed them and clean the cages."