They've traded punches in knockdown brawls, crashed biplanes through barns, and raced to the rescue in fast cars. They add suspense and drama to the story, portraying the swimmer stalked by the menacing shark, the heroine dangling twenty feet below a soaring hot air balloon, or the woman leaping nine feet over a wall to escape a dog attack. Only an expert can make such feats of daring look easy, and stuntwomen with the skills to perform -- and survive -- great moments of action in movies have been hitting their mark in Hollywood since the beginning of film.

Here, Mollie Gregory...