“Whenever an actor dies unexpectedly in the midst of a fruitful career, it’s impossible not to mourn the future possibilities that have been suddenly and cruelly foreclosed. Natasha Richardson, who died Wednesday after suffering a head injury in a skiing accident Monday, was only 45 and should have had more opportunities to show us the range of her talent, which was always surprising. One could say she made a career of overturning expectations about what she could and could not do.”