Knowing the famous audition process of Woody Allen, in which an actor enters the room, is looked over by Allen and seconds later leaves the room, Colin Farrell entered his office, stood up, turned around and said, "That's it, right?" When Allen smiled and said yes, Farrell left the office.
Colin Farrell said in an interview that he "think[s] [he] did as many takes for this whole film as I did for one scene in Miami Vice (2006)."
Unusually for a Woody Allen film, the music is provided by a composer - in this case, Philip Glass - instead of being a collection of old standards.
Woody Allen had trouble telling Colin Farrell and Ewan McGregor apart, and often got them mixed up.