Yes.
America's Funniest videos for one of their big prize shows. They needed extras for the little vignettes that Tom did going around MK. It was an open call announces to our homeschool community and we responded.
I have also done some student films for UCF, but one was as a principal.
I occasionally here of other open calls like that through acting schools. One I have never gone to a class, but she put me on her e-mail list. Another school that I did attend had postings all of the time.
The AFV was kind of fun once we were out of holding and in the park after it closed. Since it was to look like the park was open, we could take pictures, eat snacks, do whatever depending on the scene. Tom took pictures and signed autographs as well. The other shoots were less glitzy, but fun as they treated the actors like royalty in exchange for us working for free.