From Batman News:
If you’re looking for clips from Aquaman, this is your week. Jason Momoa brought one to Good Morning America on Monday and Patrick Wilson had another for The Late Show with Stephen Colbert last night. This morning Mera herself, Amber Heard brought a brand new clip to GMA.
In the clip, Mera warns Arthur (Momoa) of Orm’s (Wilson) impending war on the surface world. The only way to stop it is for Arthur to challenge Orm for the throne of Atlantis. Unfortunately, the prospect of royalty doesn’t really interest Arthur.