The movie Trading Places is rated R (suitable for adults only) and the book Idioms Go To The Movies: Trading Places is primarily aimed at advanced ESL students although it can also be used by some high intermediate students. Lessons 11-12 include more difficult idioms; therefore, advanced students may choose to do Lessons 1-12 while high intermediate students may choose to focus on Lessons 1-10 and save Lessons 11-12 until a later time.