updated 07/28/2013 AT 5:00 PM ET
•originally published 07/28/2013 AT 5:50 PM ET
For Christina Ricci, it takes just one word to make her smile.
“Getting to say ‘fiancé’ instead of ‘boyfriend,’ ” is the engaged actress’s favorite thing about her relationship status, she tells PEOPLE at Sunday’s Citi-sponsored Smurfs 2 premiere in N.Y.C. “People take you so much more seriously once you start throwing around that word.”
Next up: She’s looking forward to using even stronger vocabulary once she and camera technician James Heerdegen wed.
“I can’t wait for ‘husband’ because then I can really throw my weight around,” says Ricci, 33, who voices Vexy, the animated troublemaker in the Smurfs sequel. “ ‘My husband’s going to come down here and talk to you!’ That’s a huge threat.”
As for wedding planning, a destination event is out, but she picked out her dress, which was “designed by a friend of mine,” she says.