The level of humor in Cactus Flower is exemplified by this exchange (from memory):
Toni: What's your name.The acting and directing don't help much. Maxwell Caulfield gives Daffy Duck a run for his money in the "cartoon performance" category, and his main facial expression is "I lost my glasses." Jeremy Bobb as Igor needs to be charming and attractive, but cannot rise above the writing or his costumes and haircut to achieve either. Lois Robbins as the nurse gives an actual performance, and Jenni Barber is likable as Toni. The supporting cast overacts in an overwrought frenzy that suggests that Michael Bush should not be directing comedies.
Next-door neighbor: Igor Sullivan
Toni: Igor Sullivan. That's wild.
Igor: I made it up.
Toni: How come you chose Igor?
Igor: That's my real name. I made up Sullivan.
(Press ticket, eighth row center).