The Vanity Fair editor played by Isabella Rossellini mentions that Peter's interviewees will meet him at The Big Cup. Those interview scenes were filmed at the real Big Cup, a coffee shop in the Chelsea neighborhood (at 228 Eighth Avenue) that, before its 2005 closing, was a popular gathering for Chelsea's gay community.
On his DVD commentary, director Chris Terrio reveals that he shot two endings for the Alec and Jonathan storyline - one in which Alec does not open the door for Jonathan, and the one that was in the film, in which Alec does open the door for Jonathan. Terrio said that he decided to use the latter version after producer Ismail Merchant asked him to because "there are already too many movies where gay men get punished at the end." Terrio says that he doesn't know what happens to Alec and Jonathan "five minutes or five months later," but he does think that this version of the ending provides a "glimmer of hope" for them.
The poem that Diana lovingly recites to Isabel when they are sitting on the steps near the end of the movie is from Edgar Allan Poe's "Annabel Lee," with Diana substituting "Isabel" for "Annabel." Eight lines are spoken from the poem, but not in order they were written: I was a child and she was a child, In this kingdom by the sea: But we loved with a love that was more than love - I and my Annabel Lee. For the moon never beams without bringing me dreams Of the beautiful Annabel Lee; And the stars never rise but I feel the bright eyes Of the beautiful Annabel Lee.
When Alec is getting ready to come up to the building roof top to meet Jonathan, he grabbed a bottle of white wine with a golden colour seal. When Alec is on the roof top the bottle is of a red wine with a dark colour seal.
At the audition of Alec with Liz, it is established that Alec lives on the fifth floor while Isabel lives on the third floor. But at the beginning of the movie, Isabel comes downstairs from her apartment and passes another apartment door near the stairs. Approximately five seconds after she passes, Alec comes out of THAT apartment with his dog. Since when is the fifth floor at a lower level than the third floor?