Actors Mason Thames and McKenna Grace are opening up about their undeniable on-screen chemistry — and a few unscripted moments — from their upcoming romantic drama, Regretting You.

During the film’s red carpet premiere, Grace, 18, looked stunning in a pink dress and opened up about both her personal journey and her character’s emotional arc. She revealed that the movie — which explores love, loss, grief, and family bonds — offers “a little bit of everything for everyone.”

When asked about the romantic scenes, Grace laughed and admitted that not everything was scripted:

“I’d say Mason and I had more than a few improvised kisses that [director] Josh never said anything about on the day. He just let us do our thing,” she shared. “Ultimately, they got cut out of the film — and watching it now makes us laugh because we’re like, why did he let us do that?”

Thames, 17, confirmed the story, adding with a grin:

“Yeah, that’s true. We improvised a lot of kisses. Funny enough, most of them didn’t even make it into the movie. I don’t know why we did it, but I didn’t mind,” he joked.

The young stars also spoke about their deep connection on set and how much they enjoyed working together:

“We’ve always wanted to do a movie like this,” Mason said. “The fact that this was our first real adult role — and a romance, at that — is amazing.”

Regretting You promises an emotional rollercoaster filled with heartbreak, hope, and healing. “There are happy tears and sad tears,” Thames said. “This movie has a lot of stories that people can really relate to.”

Outside of their chemistry-filled film, both actors are having major career moments. Grace continues to shine as one of Hollywood’s most versatile young stars, while Thames is enjoying a breakout year with roles in How to Train Your Dragon and The Black Phone 2.

As for whether those cut improvised kisses will ever see the light of day — fans can only hope for some juicy deleted scenes when Regretting You officially premieres.