Morrison appeared as Kirce James in the video game Command & Conquer 3: Tiberium Wars, a character which frequently interacts with the player during the course of the GDI campaign. She was also selected by TV Guide for its Top 10 of TV's Sexiest Stars for its 2007 Sexy Issue. Her House co-star, Omar Epps, wrote a testimonial for her which said, "She exudes a lightness and has a beautiful soul... Whenever she laughs, everyone laughs." Her film projects in 2007 include Big Stan alongside Rob Schneider and The Murder of Princess Diana, a television movie based on the book of the same name by Noel Botham. Produced by Lifetime and Working Title Television, Morrison portrays an American journalist, Rachel, who witnesses the car crash which took the life of Diana, Princess of Wales.