Dunst and Plemons welcomed their son last May. The two have been together since 2015, after meeting on the set of FX's Fargo back in 2015, and have reportedly been engaged since 2017.
During the ceremony, Plemons praised his fiancée, saying he "couldn’t be any prouder" of her. “Aside from the brilliant actor you are, I’ve also had the even greater pleasure of getting to know you as a person outside of work,” he said. “Seeing the kind of mother, wife, daughter, sister, friend and cohort you are is why I and all of your friends and everyone else are here today and why we all love you. It’s for the incredibly generous and amazing person that you are. You are truly one of a kind and the best woman I know. I’m truly so lucky to have you in my life, and Hollywood Boulevard is so lucky to have you on its sidewalks.”