No plates, no forks, no problem!
Olsen got a big laugh out of her costar while pretending to bite face first into the special movie-themed cake.
The cake comes complete with a cowboy hat and vintage microphone, along with some vintage cowboy and cowgirl silhouettes – the perfect decorations for a movie based on the life of an iconic country singer.
Hiddleston is earning rave reviews for his portrayal of Hank Williams in the biopic, which premiered earlier in the night. Olsen, 26, also shines as William’s onscreen wife, Audrey.
At the afterparty, the actress stunned in a black silk gown with a peplum waist and matching sleeves. Hiddleston kept his look classic with a sleek navy-blue suit with a matching pale-blue shirt and dark-blue tie.
I Saw the Light hits theaters on Nov. 27.