Stephanie Meyers used MCR as inspiration, and when the movies were made she asked MCR if the movie could use their music. They refused, and wrote the song Vampire Money about it.
Fun fact: Because Gerard Way formed MCR in response to his PTSD from the 9/11 attacks, and because Fifty Shades of Grey is Twilight-inspired fanfiction that became its own story… technically, 9/11 caused 50 Shades of Grey. You're welcome. >>15078302