Ryan Gosling improvised one of Project Hail Marys best moments

Put Ryan Gosling and an alien puppet in a spaceship, and you get sheer joy.

That's the best way to sum up Project Hail Mary, a good chunk of whose runtime is a two-hander between biologist Ryland Grace (Gosling) and an alien named Rocky (voiced by James Ortiz). In addition to voicing Rocky, Ortiz also served as the creature's lead puppeteer, helming the crew that brought the endearing Eridian to life.

SEE ALSO: 'Project Hail Mary's ending makes one big change from the book.