She enjoyed her first taste of the action genre starring with Steven Segal in 'Under Siege 2' as his characters niece who is kidnapped as bait when terrorists seize the train. Additional feature credits included 'Prince Valiant' and the comedy 'Wish upon a Star.'
On the small screen, Heigl starred opposite Peter Fonda in the television movie 'The Tempest,' which re-situated the classic Shakespearean drams as a Civil-War period piece. She played the pivotal role of 16-year-old Miranda, who is torn between her devotion to her father (Fonda) and her love for a handsome Union soldier.

Between film projects, Kateherine continued to concentrate on school and always returned to life as a normal New England teenager. Once she graduated from high school, however, she moved to Los Angeles to concentrate on her acting career full-time.