Warner Bros. has been preparing to extensively market the upcoming Wonder Woman 1984. And so far, they are relying heavily upon the film's 1980's setting.A Twitter user posted images featuring notebook merchandise from the film. The notebooks prominently feature Gal Gadot's Wonder Woman in pristine '80s art, acting as a stylish love letter to the decade while promoting the upcoming sequel.RELATED: Wonder Woman 1984 Merchandise Teases Major New Addition to Diana's Armor

While these notebooks look like prominent pieces of merchandise, there have also been other leaks of promotional materials. One user on Reddit posted a picture of a shirt that shows Wonder Woman wearing armor inspired by her look from Kingdom Come. The shirt in question is from the upcoming CCXP in Brazil that runs from Dec. 5 to Dec. 8.

RELATED: Wonder Woman 1984 Star Gal Gadot Teases Something 'Very Exciting' at CCXP

Wonder Woman 1984 will see the titular character go up against Pedro Pascal's Maxwell Lord and Kristen Wiig's Cheetah. The film will also see the return of Chris Pine's Steve Trevor, who died at the end of the previous film.

Directed by Patty Jenkins, Wonder Woman 1984 stars Gal Gadot as Diana, Chris Pine as Steve Trevor, Kristen Wiig as Barbara Minerva/Cheetah, Pedro Pascal and Natasha Rothwell. The film opens on June 5, 2020.

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