The French don't really want to read English, same goes for the Germans. Back to the questions In the States, many theaters require that a script be submitted through an agent. I have a pile of cover sheets from my agent and I use them to send my scripts out. Sometimes people send replies to my agent, but mostly directly to me. It is expensive.
Some theatres only accept whole scripts, others only synopses.
Back to the questions I noticed you have a website. I've had less than a dozen contacts made just through my web site in five years. But most contacts come from e-mail friends and contacts come other sources. You can't really know. But often in playwriting you deal with human beings' most inner feelings and mechanisms.