That extends to the importance of music in the Guardians of the Galaxy, which come from Gunn’s personal tastes.
This included James Gunn, whose Guardians of the Galaxy are very much tied to his own sensibilities.
It makes a lot of sense then that when it came to picking the song that introduces the Guardians in the movie, the Russos left it up to Gunn.
When working on Avengers: Infinity War, which stars several franchise leads melding together for the first time, directors Joe and Anthony Russo and writers Christopher Markus and Stephen McFeely made sure to collaborate with the other creatives of the MCU to make sure that everyone was in-character.