Matthew Lewis, who played Neveille Longbottom, and Tom Felton, who played Draco Malfoy in the Harry Potter films, both attended the premiere to support their former co-star.

Lewis walked the red carpet with his fiancée, Angela Jones, and Felton chose to keep a lower profile, skipping the carpet. But ET saw the former Slytherin villain at the widely publicized event.

The evening was a very special one for Watson, who opened up to ET’s Cameron Mathison about playing yet another one of her fictional idols. 

“This was a huge deal for me,” she said of landing the role of Belle. “I mean, I watched it as a child, you know, ad nauseam to the point where my parents were like, ‘We can't watch it again, please.’ And so I feel like I've been incredibly blessed in my career so far. I already played Hermione who was one of my heroines. I played Sam in Perks of Being a Wallflower. But to play Belle is just feels like such an honor. And you know if my 5-year-old self knew I was going to get to do this, she would have died.”

She also shared that the live-action film will update the original animated Disney princess story. 

“The original came out in 1992, and we're in 2017, so I knew it needed to take a little bit of step forward,” the British actress said. “But what's so lovely about this character is I feel like of the Disney princesses she was one of the more progressive already. That was already in her DNA, and it was a case of really emphasizing what was already there.”

Though Watson has been busy with her press tour for the film, Lewis and Felton have been spending lots of quality time together lately. In late January, the pair attended a Harry Potter celebration at Universal Studios Orlando, where they spoke with and greeted fans.