This just in from nme.com:
Radiohead guitarist Jonny Greenwood is set to appear in the next "Harry Potter" film alongside Pulp singer Jarvis Cocker, according to reports.
The pair are to make a cameo appearance as a group of witches called the Wyrd Sisters, in "Harry Potter And The Goblet of Fire," reports The Mirror.
Like his name, Jonny's cameo is a nice try at Advancement, but we aren't buying it here. Why is Jonny's name a failed attempt at Advancement? Because to be truly Advanced, his name would have to be spelled "Johnny," which is the name most often used by Advanced artists in songs. Leaving out the "H" is overt, even if that's the way his parents spelled it. Also, Jonny acts too mysterious and overtly weird on stage to be Advanced.
Appearing in big Hollywood movies is often Advanced, but Harry Potter is too well liked by all kinds of people. Now if Jonny were in a new "Police Academy" movie, then we might have something.
Addition: Also, to be one of the "Wyrd Sisters," is pretty overtly weird.