X-Files and Harry Potter crossover. When the X-Files are called in to investigate paranormal activity in London, they come face to face with the world's most famous wizard.
After the final battle, Hermione is mysteriously brought back from the dead, but at a cost.
Takeoff on the Julia Roberts comedy. Harry tells Hermione that he is getting married, which causes Hermione to act in desperation, which causes Draco to sing a rather ridiculous song, which causes Ginny to get jealous...and so on and so forth. Chaos abounds.