There is a reason the Marvel Universe is full of a lot of actors with really big personalities: they need to embody these characters that are larger than life. And there's no easier way to do that than to hire a larger-than-life actor. Now that we're doing Avengers: Infinity War we get to see some of those personalities clash in the best possible way. Dave Bautista recently did an interview with Yahoo! Movies about working with the Russo Brothers and James Gunn's involvement in Infinity War.
First, Bautista was asked about improv, and if we would get to see any from him in Infinity War:
"I have a lot of interaction with Chris [Pratt] and Pom [Klementieff, who plays Guardians of the Galaxy, Vol. 2's breakout character Mantis], and it's always great when they let me play the straight man to Chris's humor. When we said something funny, [the Russo brothers, who are directing Infinity War and the next Avengers film back-to-back] would come in after the take and go, 'What was that you said? Say that again!' They were really excited about it."
Sounds good. Chris Pratt and Robert Downey Jr. are both known for their improv, so will be get to see Iron Man and Drax "riff off"?
"We do. I'm excited about some of the stuff we did, but I don't know what's going to make it in the film. I always thought there would be a lot of good interaction between Tony Stark and Drax, and there was. And Star-Lord and Tony Stark as well. When you put those two guys in a room together, it's like a spontaneous combustion. Talk about two talented guys who are so witty and smart and honed-in on their craft. It was a spectacle, and I'm so excited I got to witness it firsthand."
Finally, Bautista spoke about how open the Russos were for input on the Guardians when it came to writing. They weren't asked to change, despite being under a different creative team:
"Completely. I think one of the reasons we were so successful to begin with is because of James's creativity. We had the luxury of him writing for us on Infinity War, and the Russos didn't at all try to make us into something we weren't. They encouraged us to own our characters and be the Guardians of the Galaxy, not their Guardians of the Galaxy."
Avengers: Infinity War, directed by Anthony and Joe Russo, stars Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans, Chris Hemsworth, Jeremy Renner, Chris Pratt, Elizabeth Olsen, Sebastian Stan, Benedict Cumberbatch, Paul Bettany, Chadwick Boseman, Benedict Wong, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Pom Klementieff, Scarlett Johansson, Don Cheadle, Tom Holland, Bradley Cooper, Sean Gunn, and Anthony Mackie. It will be released on May 4th, 2018.