Here's something you can believe in: Steven Universe is getting the movie treatment.

A TV movie based on the hugely popular Cartoon Network animated series is in the works, it was announced Saturday during the Steven Universe panel at Comic-Con in San Diego. A short teaser featuring the main cast and an ominous new character inside of a spinning gemstone was shown during the panel.

No title (beyond Steven Universe: The Movie), plot details or release date were announced for the movie. It will presumably feature the voices of Zach Callison as Steven, British singer Estelle as Garnet, Deedee Magno as Pearl, and Michaela Dietz as Amethyst, among others.

The fan-favorite series, which boasts four Emmy nominations, recently made headlines for featuring the first same-sex proposal and first same-sex wedding in a mainstream children's show. Crystal Gems Ruby and Sapphire, who fuse to become Garnet, tied the knot in the emotional episode "Reunited," which aired earlier this month.

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"We absolutely must tell LGBTQ+ children that they belong in this world and they deserve to be loved," Sugar told EW when the episode aired. "We cannot wait until a child grows up to tell them they deserve to exist and that their story matters."

The Steven Universe movie is coming to Cartoon Network at a date to be determined.