I'm not sure specifically who Barbara Noel is without more context about this 'Barbara Noel story'. It could be an ordinary person with a unique experience, or perhaps someone known within a particular community or family.
Yes, 'Beetlejuice' was inspired by some real - life concepts. The idea of ghosts and the afterlife which are central to the movie have long been part of human superstition and cultural beliefs. However, the specific characters and the wacky, comical situations in the movie are fictional creations of the filmmakers.
Beetlejuice is a ghost who has a rather strange origin. He was once a human, but due to some unknown and probably dark events in his past life, he ended up in the afterlife. He became a mischievous and somewhat unruly spirit. He haunts the house where the main characters live. He has his own set of rules and abilities that are unique to his ghostly existence.
Beetlejuice indeed comes from a comic. The comic version provided the foundation for its subsequent adaptations in movies and other mediums. The characters and storylines were first introduced in the comic format.
Beetlejuice is about a recently deceased couple who haunt their former home and encounter a mischievous ghost named Beetlejuice. It's a wild and wacky tale full of supernatural fun and chaos.