Film Story/Plot Writing?

ok well ...i studied creative writing for 3yrs ...i like to write serials and short stories [mainly mystery and dramas]......i have over time been taught about screenplay writing too [as i wanted to make my serial into a tv series one day].........my advice is locate the book "screenwriting for dummies" [yes i know its a dummies book lol]......it'd be a wise investment if you are serious as its like a step by step guide on the construction of a script ....you would also need to learn [either from film company websites or a media catalogue-a list of people seeking stories and the format they may like ti presented in]how to tailor your writing for their requirements ........also purchase some scripts ...this is easy as shakespeares works to even things like stephen kings storm of the century are available for purchase in their script format ok ......read them ,aknowledge the lay out and relate it [dont copy it though lol]....good luck and message me if you have further enquiries :)