Some horrifying images stick in your mind forever. That shower attack at the Bates Motel. Zombies storming a farmhouse in Night of the Living Dead. Leathermask's rampage in The Texas Chainsaw Massacre. Add to the list: the final confession in The Blair Witch Project, in which a petrified young filmmaker delivers her last will and testament on video while awaiting imminent doom. Improvised by newcomer Heather Donahue, the spine-tingling scene is guaranteed to provide nightmares for years to come.
A Philadelphia native whose only previous high-profile role was in a TV spot for Psychic Friends Network ("Ten minutes free! We're totally...