To make films is as boring as watching paint dry - you usually have to do little tiny bits here and there. You go off waiting for lighting, you come back - the energy dies. You hope you can find someone who can keep it going.
I had done a fair bit of traveling during the holidays in my school days with my guitar and discovered that I could live on it. Admittedly, I traveled with a sleeping bag but I could always find somewhere to lay my head.