The 31 year old Scottish actress reprises her role as Nebula in Avengers: Endgame, which hits theaters April 26, with the premiere held Monday night at the Los Angeles Convention Center in downtown Los Angeles. Black dress at the Avengers: Endgame world premiere in Los Angeles on Monday night. We’re moving into the immersive, adult power ranger costume interactive world – that’s where the future of the brand is. The series utilizes the various corners of the DC universe without exhausting any of it, which results in some truly inspired cameos and Easter eggs.