The working title for director Patty Jenkins' Wonder Woman sequel could very well hint at the movie's title.

With principal photography expected to begin this summer at Warner Bros. Studios in Leavesden, England, the film reportedly has been given the working title "Magic Hour."

Although a lot of productions select working titles at random, Omega Underground notes that others, like Shazam!, opt for something with some significance (its "Franklin" seemingly teased both Benjamin Franklin's lightning experiment and the film's setting). The website then floats the possibility that "Magic Hour" points to the identity of Wonder Woman 2's villain: Circe.

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Of course, the character has been rumored since at least 2015, before Wonder Woman began production, with Eva Green (Casino Royale, Penny Dreadful) then said to be eyed for the role. Instead, Elena Anaya was cast in the original film as Doctor Poison. There's no clear indication the studio is looking to cast Green for the sequel.

Based upon the Greek mythological figure depicted in Homer's The Odyssey, DC Comics' villain Circe was introduced in 1949's Wonder Woman #37 as a wicked sorceress, and a frequent foe of the iconic superheroine.

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Although plenty of rumors have swirled about Wonder Woman 2, including the era in which it's set, few if any details have been confirmed. Jenkins said in January that the intention is for the sequel to be “totally different” from its acclaimed predecessor. There's also little indication of what characters and actors will appear in the film.

Released in June, Wonder Woman earned critical acclaim, and grossed nearly $822 million worldwide, delivering Warner Bros.’ struggling DC Extended Universe its first undeniable success.

Once again starring Gal Gadot in the title role, Wonder Woman 2 arrives in theaters Nov. 1, 2019.