Most of the fan base of the early Bond movies hadn't read the books. The pleasure of seeing those villains on screen for most is that they were just done so well - not seeing them transferred from book to screen.
There is absolutely NO reason why Le Chiffre's name shouldn't be included. Can you imagine if they didn't use the names Goldfinger, Dr. No, or Blofeld? One of the great pleasures of the original films was seeing these great characters leap from the page to the screen. These are iconic names and iconic characters and die hard fans have been waiting 40 years for Le Chiffre to join their ranks. To deny the fans this would be a slap in the face.CASINO ROYALE is certainly a spy-thriller classic, but let's not fool ourselves. This isn't adapting one of the most beloved books of all time. Bond's success lay primarily outside of the novels and in the EON films.
Casino Royale on the other hand is a literary classic and deserve enough respect to retain the original character names for the big screen adaptation.
On aicn site they have a scoop regarding spiderman 3 using a character called Gwen Stacy . Most of the people who go and see this will not know about this character history but the director wants to use it.
It seems to me that our producers ,director , script writers dont have the conviction to use CR characters names