The best way is through the Writers Guild. You can now do it online, through their website. It's safe, inexpensive, and holds for 5 years which you can then extend to another 5 years.
To register a screenplay, you can submit it to the U.S. Copyright Office by filling out the appropriate application forms and paying the registration fee. You can do this online or by mail. Note that copyright protection is automatic once you create the work, but registering your screenplay provides additional legal benefits and evidence of ownership in case of infringement.
Ir isn't necessary unless you feel there might be a need to separate them for financial reasons (selling to two different entities). In all likelihood you could register them as a collection with the copyright office.
Your country's copyright office.
The Copyright Office lists the authors, Mark Giannino and Chris Murphy, as the copyright claimants.
yes
yes
Sure. But keep in mind that since your screenplay was automatically protected by copyright as soon as you wrote it down, this company isn't really giving you anything.
Registration is not required for protection. If you wish to register anyway, you may do so through Access Copyright at the link below.
Works are protected by copyright as soon as they are "fixed." If you wish to register a work with the copyright office, you may do so.
It depends what country you are in.
No, but you can register it as a trademark.
Registering a Copyright OnlineYes, you can. Go to this website: http://www.copyright.gov/forms/ which is the Electronic Copyright Office.
You cannot copyright a business name, but you can register it as a trademark.