Amazing 1930s propaganda.

John Lydgate is the worst medieval offender that I can think of off the top of my head. For the prologue to his Siege of Thebes, he wrote himself into Chaucer's Canterbury Tales.

And so while the pilgrims were
At Canterbury, well lodged one and all,
I don't know what to call it,
Luck or Fortune -- in the end
That led me to enter into that town

It's insane. We honestly have no idea how this all happened. The original marketing plan for Once was to get one 35mm print made, which was going to cost us like four grand. A lot of money. We were going to drive around Ireland in a car, and [writer/director] John [Carney] was going to introduce the film. We figured there were enough Frames fans in Ireland to fill the cinemas. I was going to play a few songs with Mar at the end, and we were going to sell the DVD on the way out. That was huge.