In 1988, Peterson co-starred in a Roger Corman production, the post-apocalyptic film "The Lawless Land", followed by a role in the 1989 teen drama "Listen to Me". Later that year, she returned to Greeley, where she graduated from University High School (while working in Los Angeles, she was privately tutored). Shortly after graduating, she starred in the television movie Fatal Charm (1990 film). That fall, Peterson enrolled at Middlebury College. While on semester break, she appeared in a guest spot on "Doogie Howser, M.D." Later that year, Peterson dropped out of Middlebury College. In 1994, she returned to acting in the fantasy film "WindRunner", starring Jason Wiles. It was Peterson's final onscreen role.