The 59-year-old director is making four separate films about each member of The Beatles, and Ringo is already looking forward to watching the movies.
Ringo - who was part of the fab four alongside John Lennon, Paul McCartney and George Harrison - told PEOPLE: "I'm excited that [Sam] has taken the madness of making four movies at the same time."
Ringo is curious to see how Mendes approaches the project.
"My life as a lad, John's life, Paul's life, George's life, I mean, it must interact in some way," he said.
"There'll be Beatles in mine around when I joined, and there'll be Beatles in Paul's. We'll all be there. So I'm excited to see what he does with it."
Mendes first announced plans to make the Beatles movies in 2024.
"We went out to Los Angeles just before Christmas to pitch the project, and it's fair to say we were met with universal enthusiasm," he told Deadline at the time.
Jeff Jones is executive producing the films for Apple Corps Ltd, and he's promised to create an "epic cinematic experience".