The last decade has been kind to Marvel Studios and their parent company, Disney. Yet, long before this recent success, the Marvel brand was best known for its comics and television cartoons based on those characters in the 1980s and 1990s.

One of those shows was X-Men: The Animated series. This series brought the franchise’s characters like Wolverine, Cyclops, and Magneto to life. The show is once again relevant as Disney announced it would be a launch title for its upcoming streaming service.

Who gets credit for the theme song?

A representative for a deceased Hungarian composer’s estate has filed a lawsuit alleging the X-Men theme song is remarkably similar to the theme the composer created for a Hungarian television show in the mid-80s and early-90s.

The composer’s estate claims that the X-Men animated show’s success is largely attributable to the theme song and the work of the deceased songwriter.

Since the show has not yet launched, and likely no money has been earned by Disney yet, it’s unknown how much compensation the composer’s estate is seeking.