Ezra Miller made his first appearance as the Flash in Batman V Superman, followed by a cameo in David Ayer's Suicide Squad, and will return for Justice League that comes out in 2017.

The actor spoke at length about Flash's relationship with Ben Affleck's Batman in Justice League. Miller told IGN, "I think it's the relationship between someone who is naive and excited and someone who is experienced and jaded. And it's that seeing each other as reflections of one another and being amused and maybe sometimes annoyed by one another. I think Bruce and Barry get a kick out of each other because they're seeing sort of themselves but reflected in this very warped mirror."

Teasing a fascinating relationship, the 24-year-old actor continued, "Bruce, the aged Batman, is everything that being a superhero means you could become, in terms of being pretty shut down and having seen all this horror. He's like a veteran of this struggle against evil. And Barry is just getting into it, and it seems exciting! And very fun! And so, I think they have a lot to learn from each other, like in any great friendship. I think it's a fascinating relationship."

Ezra has also shared some updates on his solo DC movie The Flash, which has now lost two directors due to "creative differences" with Warner Bros. The Fantastic Beasts And Where To Find Them actor told Cinema Blend, "I think that the most important quality is the open heart. I think that The Flash has to be a story that is heartfelt. Because I think that's where the lightning really is."

Miller also said the movie's production will start this year. He said, "We don't know right now [who the director will be], but I think we'll start this year, I think it's coming up pretty quick."

Justice League will open in theatres on 17 November 2017 and The Flash solo movie is set for release on 16 March 2018.