The 25-year-old actress met her actor beau on the set of Very Good Girls in 2012. The pair started dating soon after, and got engaged in March of this year. Olsen recently spoke to Marie Claire U.K., and discussed her upcoming nuptials for the magazine's June issue.
"I'm relaxed about it, but I am excited and planning ideas because it's fun," she says. "It's just like throwing a party to celebrate life. I love being in a relationship a lot."
The star and her sisters, Mary-Kate and Ashley, currently live in New York, but Olsen says she and Holbrook might like to settle down and start a family elsewhere.
"My mother would love it if I was in L.A. with kids," the actress suggests. "I loved growing up in L.A., but I always think about places I've never been to before, like Oregon."
Sister Mary-Kate also recently got engaged, to French banker Olivier Sarkozy in February. Fans hoping for a double Olsen wedding will be disappointed, however, as Elizabeth denies that a joint wedding will happen.
"I just told her she gets to pick a date first," she says of her older sister.
Olsen will next star in the Gareth Edwards-directed remake of Godzilla on May 16. Fiancé Holbrook will appear in David Fincher film Gone Girl on October 3.