Complex sentence: She appears only in the first act, except in the 1954 musical in which she sees the Darling children fly off with Peter; when she tries stopping them, Michael sprinkles her with fairy dust and she ends up in Neverland.
Split into simpler sentences: She appears only in the first act, except in the 1954 musical. In this musical, she sees the Darling children fly off with Peter and begins to protest, but Michael sprinkles her with fairy dust and she ends up in Neverland.