The 27-year-old British actor, who has previously said he does not want to talk about his relationship with the pop star, was asked about his girlfriend's very public political stance on Thursday while promoting his upcoming film, The Favourite, at the UK premiere of the movie at the 62nd BFI London Film Festival.
When a reporter asked Alwyn what he thought of Swift's posts about the midterm elections, he replied, "I think it's great. I think it's important." He then exited the interview.
Alwyn, who has been steadily growing out his facial hair during this press tour, was the epitome of a leading man at the event with his longer blonde locks swept to the side, his now-full beard, and his piercing blue eyes on full display.
For the red carpet, he wore a black turtleneck and a royal blue Prada suit.
Alwyn attended the premiere alongside his co-stars, Emma Stone, Olivia Colman, and Rachel Weisz.
Stone dazzled in a silver floor-length Louis Vuitton gown. She kept her makeup bold with a merlot-colored lip and rocked a sparkly silver headband for some extra bling.
Colman, who is getting ready to take on the role of Queen Elizabeth II in the upcoming season of The Crown, also went for a silver look, posing with the cast on the carpet.
After giving birth to her second child last month, Weisz looked incredible in a scarlet sequin Alexander McQueen dress.
While Swift did not join her guy at the premiere, Alwyn previously told British GQof his relationship with the "Gorgeous" singer, "Someone's private life is by definition, private. No one is obliged to share their private life."