Backdrop image for movie Leonardo, the Terrible Monster

Leonardo, the Terrible Monster (2007)

Leonardo is truly a terrible monster-terrible at being a monster that is. No matter how hard he tries, he can't seem to frighten anyone. Determined to succeed, Leonardo sets himself to training and research. Finally, he finds a nervous little boy, and scares the tuna salad out of him! But scaring people isn't quite as satisfying as he thought it would be. Leonardo realizes that he might be a terrible, awful monster-but he could be a really good friend.

  • Animation
  • Family

Top billed cast

  • Photo of Mo WillemsMo WillemsLeonardo (voice)
  • Photo of Joey StackJoey StackSam (voice)

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