When C.D. (Steve Martin) is consulting the plastic surgeon about getting a nose job he holds a picture of the nose he wants up beside his nose. The picture is of his real nose.
In a radio interview, Steve Martin said about his role in Roxanne that it was the first time he felt respected in a film role as opposed to being recognized for his celebrity as a stand-up comedian.
For three weeks, the picture was filmed in Nelson, a sleepy town tucked away in a corner of British Columbia in Canada, and then the production segued for the remainder of the shoot to the same Canadian province's town of Anmore and largest city of Vancouver.
When C.D. is challenged to think of 20 better jokes than "big nose", one of them, "you must love the little birdies that you give them this to perch on" is taken directly from the original scene in "Cyrano de Bergerac."
One of the nose insults that C.D. comes up with is "your nose was on time, but you were fifteen minutes late." Cyrano laments later in the play that his nose precedes him by fifteen minutes.