How do you start a comparison essay between a movie and the original play?I have to write an essay after I read the original play and watch a movie...

I think that your introduction should outline the basic
idea of your paper.  Since you are going to be comparing the different levels between
the film and the play, I think that your introduction might want to open up how the play
was ripe for cinematic representation.  This might involve briefly discussing the
initial reaction to the play.  If the play was not received well, it seems highly
unlikely that it would have been made into a film.  This might find its way into the
introduction that opens up how the topic can develop.  At the same time, I think that
you might want to talk about how there are specific differences between any cinematic
representation and its dramatic interpretation on stage.  This will also allow you to be
able to bring out your thesis statement, suggesting that there is
specific