There's Something in My Attic (1990)

Based on the book by Mercer Mayer. "There's Something in My Attic" tells the story of Jessie, a little girl who moves into an old country house with her mother and father. While moving in, she is warned by her new friend, Louisa, that the house is haunted. Jessie doesn't believe her at first, but then some of her toys mysteriously disappear. After failing to convince her parents that there is something big, ugly, and furry in the attic, she decides to confront the creature by herself. What follows is a charming encounter that illustrates the value of courage, sharing, persistence, and imagination.