We actually have film versions of several of these plays. Search for them in the catalog (Use Advanced Search, type in the title and then scroll and click "Movies"). If you need help finding the actual film ask for help at the Reference Desk.
You can search this database for filmed versions of the plays you are reading. Not all plays are here, but you may find something. You may also find interviews with historians, playwrights & scholars, as well as documentaries that might be helpful.
You might also find video versions of your plays using Youtube. Many of the video versions available on Youtube are not the best quality, but they may suffice.