She's not just Mrs. John Travolta. At one point in time, Kelly Preston was one of the most underrated babes of the 1980s.

Most movie fans know Preston for her memorable 90s roles, including villainous turns in "Jerry Maguire" and "Addicted to Love" and a simple romantic pairing with Kevin Costner in "For Love of the Game." 

But Preston, who turns 45 years old today, spent the 1980s playing the pretty face in a handful of largely forgotten movies. But just because they're forgotten, that doesn't mean they weren't good. And give Preston credit for making every one of these films better.

TOP 5 KELLY PRESTON MOVIES OF THE 80s:

5. Space Camp (1986): I'm not going to pretend this is a great movie. But I have fond memories of seeing it for free at 2 a.m. during a free employee showing at the multiplex.

4. Mischief (1985): One of the forgotten "losing your virginity" movies of the 80s. Familiar plot, but set in the 50s.

3. Secret Admirer (1985): Preston plays nearly the exact same character as in "Mischief." But if it works, it works -- thanks to C. Thomas Howell and the ultra-sexy Lori Loughlin.

2. Twins (1988): Now, I realize I'll be mocked for lauding this movie at all. But you gotta admit, the seduction scene between Preston and Arnold Schwarzenegger is classic.

1. The Experts (1989): The flick in which Travolta and Preston met. Filmed before Travolta's comeback in "Pulp Fiction," give this film a try. (Also features Deborah Foreman -- "Julie" from "Valley Girl.")

Did you know: Preston was born in Honolulu, Hawaii. So naturally her first big acting role -- a spot in "Hawaii Five-O" in 1980.

[AP photo; publicity shot]