W.H. Auden makes a few appearances as do the inspiration for Sally Bowles and Mr Norris. Mr Norris is a particular favourite of mine and I'm already looking for a copy of Mr Norris Changes Trains.
In short, a cracking view. People expecting a quaint literary biopic might be caught off guard by the fairly raunchy bedroom scenes but generally it will appeal to anyone with an interest in 20th Century, and particularly '30s, literature.