Unfortunately, the new romance is just for the movies - and even that won't last.
In new romantic drama It's Not You, Guttenberg and Elizabeth play lovers who are not meant to be together.
The film, directed by Allie Dvorin, also features actress Milena Govich as the object of Guttenberg's character's affections.
It's Not You will shoot in and around New York in November and December (09).
Guttenberg and indie movie mogul Morris S.Levy are among the film's producers.