The film, an LGBT rom-com, is a project that's very near and dear to the actress' heart.
When speaking Monday with Variety, Stewart opened up about starring in the "Twilight" saga and also expressed how much she enjoyed bringing "Happiest Season" to life.
"If you boil down the story to what it’s actually about, it’s a full-grown woman, like a 31-year-old woman, coming out to her family. I mean, generationally speaking, that is remarkable," the "Charlie's Angels" star noted. "And it is so unremarkable in terms of how accelerated that growth has occurred — we didn’t have a movie like this just a couple years ago."
With Hollywood aiming to include more LGBT voices, the 30-year-old actress hesitated when asked if gay characters can only be played by gay actors.
At first, Stewart admitted she "would never want to tell a story that really should be told by somebody who’s lived that experience." But then she elaborated, saying, "It’s a slippery slope conversation because that means I could never play another straight character if I’m going to hold everyone to the letter of this particular law. I think it’s such a gray area."
She added that actors "actually have to care" about the character they play.