According to The Hollywood Reporter, A federal appeals court panel ruled Monday that an Australian couple can proceed with a lawsuit that alleges their idea for a shape-shifting creature was wrongly used in the film Terminator 2: Judgment Day.

Filia and Constantinos Kourtis claim that they came up with the character in 1987 for a movie called The Minotaur. The couple hired a writer, William Green, to craft a screenplay, and they allege that the screenplay was shared with James Cameron, who directed and co-wrote Terminator 2.

The sci-fi film, which starred Gov. Arnold Schwarzenegger before he entered politics, was released in 1991 and featured a character that can transform its appearance.