in response to Ms. KommuniKation... The very best way to ensure not becoming privy to a "scam" is to just be able to find the information yourself. That is one of the biggest arguments about grant programs - is that the information is "freely accessible to the public". However this doesn't apply to all grant programs - just those that are provided by the government.
There are quite a few grant programs out there for those that want to start their own business - only they are not government grant programs but grant programs provided by organizations, foundations and even other businesses.
There are many film-related grant programs out there and I suggest you visit both my grants blog and website to find out more about these kinds of grant programs.
http://grantbasics101.blogspot.com
and
http://members.aol.com/Roseb441702/grants.htm
once you start looking you'll be surprised at the number of grant programs that are out there that are related to film-making.
And I would also advise you to look "outside the box" and not just limit your searching to film-related grants. Since you mentioned that you would like to start your own business you should also look into some of the grant programs relating to starting one's own business.
You can even "modify" your own objectives as far as starting your film business is concerned. There have been those who have received funding because they made a certain type of film such as those relating to nature or history - serving a specific purpose of which there are many grant programs for!