Aquaman star Jason Momoa has said they're "pulling out all the stops" for the sequel to the hit 2018 DC Comics film, teasing that "the stakes are a lot higher" this time around.

The Game of Thrones actor is reuniting with director James Wan and screenwriter David Leslie Johnson-McGoldrick for the follow-up, officially titled Aquaman and the Lost Kingdom, which is slated for release in late 2022.

He is reprising his role as the titular half-human, half-Atlantean superhero, while Amber Heard (Mera), Patrick Wilson (Orm) and Yahya Abdul-Mateen II (Black Manta) are also returning.

Speaking to Fandango, Momoa gave fans a glimpse of what's in store: "This time around, I feel like [we're] pulling out all the stops.

"We all learned something one the first one. It's exciting because I haven't made too many sequels, even on the page, it was absolutely wonderful. There is so much going on. I think the stakes are a lot higher."

He continued: "There's a lot of comedy. I mean, I giggled reading it. There's a lot of fun. There's a lot more heart, there's a lot more risk."

The 42-year-old American actor added that advances in CGI in the past few years means that the underwater world created in Aquaman and the Lost Kingdom is on "a whole other level".

He said: "In the last three or four years, technology has just... constantly... It's just moving at such a rapid pace that what we're doing with [the] underwater [scenes], that's what made the first one so amazing, is just on a whole other level."

Momoa recently gave fans a first look at his brand new costume for the sequel, which is sleeker and darker in colour than the original.

He wrote on Instagram: "Second round. New suit. More action."

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Aquaman and the Lost Kingdom currently has a release date of December 16, 2022.

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