We all laughed a lot.  Rupert is very outgoing and completely fearless about making a fool of himself.  Steven is a much quieter, more self-contained person.  They were very childish together, which was a fantastic release for Steven from the strictures of playing his part.  You know, people think of Rupert as incredibly upper-class.  But he comes from a little seaside town and left school at 16 to train to be a circus clown.  He is a very flexible person with great physical skills and a fabulous sense of humor.

Richard Spence, director of Different For Girls

(I found a copy of some preliminary production notes in a movie kit along with some slides and photos.  I hadn’t seen this quote anywhere online yet.)