MirrorMask is a 2005 fantasy film designed and directed by Dave McKean and written by Neil Gaiman from a story they developed together, starring Stephanie Leonidas, Jason Barry, Rob Brydon, and Gina McKee.. The film’s story revolves around a young girl named Helena Campbell, who is sick of her family’s career as circus performers. Helena’s mother is hospitalized after they have an argument, and Helena finds herself trapped in a fantasy world shortly after.