James Gunn’s Guardians of the Galaxy trilogy has become a standout success in the Marvel Cinematic Universe, acclaimed not only for its distinct humor and characters but also for its unique setting and storytelling. A key factor behind this achievement was the casting process, particularly how Chris Pratt landed the role of Peter Quill. Gunn recently opened up on DC’s official Peacemaker podcast about Pratt’s audition and the challenges he faced during his initial screen test.
According to Gunn, Pratt delivered a perfect audition that convinced him he was right for the role.
I loved him in the role. He was perfect in his audition,
the director said. However, Gunn revealed that the screen test that followed almost jeopardized Pratt’s casting.
And then he did the screen test.
Screen Test Difficulties and Director’s Intervention
The screen test was designed to showcase Pratt for Marvel and Disney executives to approve Gunn’s choice for the lead. Yet, Pratt’s performance during this critical test was very different from his confident audition. Gunn recalled,
He was so… He was just, just hurting. […] I went behind the scenes. We actually built a whole set and everything. I went behind the scenes with him, and I was like, ‘This isn’t good. You’ve got to get it right, man.’ It’s like, I don’t know what to say in that case.
Despite this rocky moment, Pratt eventually pulled through with some support from Gunn and his future co-stars.

Finding a Star Like Robert Downey Jr.’s Tony Stark
Gunn admired how Robert Downey Jr. embodied Tony Stark with authenticity and sought a similar natural quality for Star-Lord. To find this, he conducted around twenty screen tests featuring both established names and rising stars. Although Pratt initially seemed ideal, his on-camera attempts faltered. Gunn explained to podcast hosts,
Sometimes actors get in their heads. And one of the things I say to them sometimes is […] ‘Your feelings don’t matter.’ […] ‘How you feel in this moment has nothing to do with how it’s being projected towards a camera that’s picking you up. So how you feel has nothing to do with this.’
A Tough Pep Talk and a Turning Point
In an interview with The Hollywood Reporter, Pratt shared how Gunn had to stop him mid-screen test, delivering a blunt message:
I don’t know what you’re doing, but you’re blowing it. This is the moment right now. You just need to stop doing whatever you’re doing and just be real. Just be you.
However, even after this direct confrontation, Pratt found it difficult to regain his footing. He recalled the pressure, with Gunn repeatedly emphasizing,
You’re blowing it, you’re blowing it.
Not willing to give up on Pratt, Gunn then brought in Dave Bautista, who was being considered for the role of Drax the Destroyer but had not yet been cast. Their improvisation session sparked undeniable chemistry, helping both actors relax and embrace their characters’ personalities.
Improvisation Chemistry That Saved the Casting
The pairing of Pratt and Bautista during their screen test proved decisive. The undeniable rapport they displayed convinced the studio to move forward with Pratt as Star-Lord, despite initial resistance regarding Bautista’s casting. The video of this screen test is now available, showcasing the natural dynamic that allowed these two to slip into their roles and personalities with ease.
This breakthrough became the turning point that revealed the Star-Lord fans recognize today, shaping the success of the Guardians franchise and leaving a lasting mark on Marvel’s cinematic legacy.
