Disney's 2007 movie Enchanted poked ever-so-gentle fun at the princess genre they established. Among that film's tricks was bringing back a number of actual princesses in sly little cameos. For example, at one point, Prince Edward (James Marsden) watches a sleazy soap opera on TV. The woman on the screen is Paige O'Hara, doing it just like she did in Beauty and the Beast…if Beauty and the Beast were sleazy and gauche and full of people wearing too much makeup. (Source)

Lumiere's name is French for "light," which makes all kinds of sense for a guy stuck being a candelabra. But there's a second, subtler meaning there. Lumiere is also the name of a pair of brothers, Auguste and Louis, who patented the world's first movie camera. Their 1895 film, Workers Leaving the Lumiere Factory, is generally credited with being the first motion picture in history. That gives the character a subtle but distinct connection to the very medium on which he's portrayed. (Yes, Thomas Edison came before the Lumieres, but his kinetoscope could only be used by one person at a time. These guys made it possible for a whole audience to see the images.) (Source)

Many of the actors voicing the characters were stars of the Broadway stage; megastars, in the cases of Angela Lansbury and Jerry Orbach. (Yes, he had quite a career before Law & Order.) Disney hoped all along that the film would eventually be made into a Broadway production, and they cast it accordingly. (Source)