Hayden Panettiere as Amanda Knox

Hayden Panettiere as Amanda KnoxHayden Panettiere dresses up as convicted murderer Amanda Knox, although it's for a new film not Halloween.The film will air on US TV next year and will show the events around the murder case.Knox, nicknamed Foxy Knoxy, was an American exchange student convicted of murdering 21-year-old Kercher, who was found semi-naked with her throat cut three years ago.Heroes