SAG Ultra Low Budget Agreement
 

The SAG Ultra Low Budget Agreement can be a nasty trap for low budget filmmakers.

Here's a no-nonsense article written from the filmmakers POV:

Easy Budget Articles

Well, I now have some experience with the short film agreement. Wrapping up our first SAG short this month. It's been pretty interesting and it is not nearly as complicated as I thought it would be.

I am looking into the Ultra low budget since that's basically the best deal you can get from SAG on a feature, and I see it as a plus that it definitely is in my budget range :)

Re: SAG Experimental Film Agreement in plain English
 

Would just like to point out the link in the OP doesn't work anymore...