This made me think of Game of Thrones.
When reading the books, I always said Petyr (Little Finger) as Pee-teer or Peh-teer (emphasis on the last sound being closer to ''ee''). Whereas in the HBO series, it was simply pronounced like ''Peter'', like regular English. G.R.R. Martin has commented that he doesn't give out pronunciation guides and the readers can imagine the pronunciation they wish. It's just interesting how show producers interpreted it compared to some readers.
Don't hesitate to rate my different PNLs:
http://www.behindthename.com/pnl/246179