Elvis Presley and Captain Marvel Jr.

When it comes to making movies based on classic literature and music, director Baz Luhrmann is best known for his wildly over-the-top, pop culture-inspired versions of Romeo and Juliet and The Great Gatsby. His latest movie, a biopic about Elvis Presley, takes a slightly different approach. While the film centers on the rise of the king of rock and roll, it also pays tribute to one of Elvis’s favorite superheroes.

The original Captain Marvel comics were incredibly popular in the early 1940s, regularly outselling both Superman and Batman. To broaden the franchise, publisher Fawcett decided to introduce a teenage sidekick, Captain Marvel Jr. The character debuted in Whiz Comics #25 in December 1941. The teenage hero was modeled after the young Elvis, complete with black hair and a handmade Marvel lightning bolt akin to those worn by the king himself.

It didn’t take long for the teen to become a pop culture icon in his own right. Elvis himself reportedly styled his own hair like the character and used it as inspiration for some of his wilder jumpsuit outfits. He also wore a handmade lightning bolt pendant just like the hero’s.

But as quickly as he rose to fame, Captain Marvel Jr was facing some big changes. In 1952, Fawcett faced a copyright lawsuit from DC Comics alleging that the hero was a rip-off of Superman. Rather than continue to fight the lawsuit, the company decided to end production on the entire Marvel Family line. That included Captain Marvel, Mary Marvel and Freddy Freeman.