Sister Halloween Costumes: Marcia, Jan, and Cindy Brady From "The Brady Bunch" What to wear: Dive into some sweet '70s duds! Think colorful or striped shirts and slacks.

To celebrate the anniversary, we tracked down little Cindy Brady herself, actress Olivia Hack. Now 31, Hack considers the flick a perfect "time capsule" of her life at the time. "I feel so old, I ...