Nicole Kidman, Jason Momoa and Amber Heard star in Jason Wan's 'Aquaman,' out Dec. 2018.

ET spoke with the 'Aquaman' star at Comic-Con, where he dished on whether or not he'd be down to guest star on the hit HBO show, alongside his co-star, Nicole Kidman and daughter-in-law, Zoe Kravitz.

The actor chatted with ET at Cinemacon in Las Vegas on Tuesday, where he also opened up about working with Nicole Kidman in the solo DC Comics film.

ET caught up with the actress at Cinemacon in Las Vegas on Tuesday, where she opened up about the upcoming DC Comics flick.

The 'Aquaman' actor stars in the action flick, about a father and son who must protect their remote cabin after a group of criminals arrive. ('Braven' is available in theaters and On Demand on Feb. 2.)

ET sat down with the cast, including 'Aquaman' Jason Momoa, who had quite the costume confession.

ET caught up with Affleck, Gal Gadot and Jason Momoa at the Hollywood premiere of 'Justice League,' which hits theaters on Nov. 17.