Are screenplays worth reading...??

Question:

Are screenplays worth reading...??

if you are interested in writing/directing a film? that might sound like a stupid question but im not sure because i dont want to part with my money unless it will be helpful to me!!
the movies im realy into are
Pulp Fiction,
Clerks,
Theres Something About Mary,
Momento,
Shawshank,

well there only a few that come to mind right now!guess im too tired to think at this time!well comments well be very helpful.

Best Answer - Chosen by Asker:

If you're interested in writing and directing it's essential that you read scripts, especially the one's you think are great.

You don't have to go to an expensive graduate school. Study great scripts. Some that have been published in book form should be at your library, ask. That'll save you some money.