Nobody knew why Catherine became famous, least of all her.
She starred in a low-budget short film, wherein the protagonist was involved in a marshmallow-eating contest. Catherine herself was not particularly skilled at eating marshmallows, having lost many a “Fluffy Bunny” in her day. She was, however, meant to play the winner of such a contest.
Perhaps it was her own difficulties with the part that led her to shine, or perhaps it was a shift in the zeitgeist toward marshmallows. Soon, however, she was appearing on late night talk shows and receiving roles in big-budget blockbusters.
With a mouthful of marshmallows, though, Catherine became a star, and she never looked back.