In 1999, Katherine Heigl turned her attention to television when she accepted the role of Isabel Evans on the science fiction TV drama Roswell, a role that was expanded in the show's second and third seasons. Heigl was frequently featured in photo essays in magazines such as Life, TV Guide, and Teen as well as FHM. She appeared in the FHM and Maxim calendars, FHM's annual 100 sexiest women in the world, and was featured in the Girls of Maxim Gallery. In May 2006, Maxim awarded her #12 on their annual Hot 100 List as well as voted the 19th "Sexiest Woman in the World" by readers of FHM magazine. While Roswell was in production, Heigl worked on several films, including 100 Girls, an independent 2001 film in which she played competitive tomboy Arlene, and Valentine, a horror film starring David Boreanaz and Denise Richards in which she played medical student Shelley Fisher, who was killed during the film's opening scene.