Yes, there is homework. Outlining and writing a screenplay is a big undertaking. I recommend that you devote two hours a day to the workshop. If you have a busy schedule, that may not be possible, in which case, you may want to temper your expectations, but that should not discourage you from jumping into the class. It is more important that you approach this workshop as a daily or near-daily practice, even if you can only devote a little time each day than it is to cram all of your work in on weekends.