I was shooting digital star trails several months ago. While doing that, I left the film camera open the whole time just to see what it would do. I just got my film back. It was the only exposure on the roll for about 6 months so I forgot that I even took it:
I got this processed through Walmart believe it or not. I found out recently that their mail-out film goes directly to Fuji Labs. They process E6. It cost me $4.88. Not bad.