Job security is a myth. . . it is also risky for self-employed people in my opinion. If they get sick, injured, or die, their income is directly impacted.
I think the work is the same in Indie films or blockbuster. It's just a difference when you do all the publicity. It's like another job. I remember the first time I did The Dreamers. I went to Venice; quite a good amount of publicity, a lot of round-tables and TV. I was just not expecting that. I thought I was going to visit Venice, but actually no.