I had the good fortune to be able to right an injustice that I thought was being heaped on young people by lowering the voting age where you had young people that were old enough to die in Vietnam but not old enough to vote for their members of Congress that sent them there.
I was offered a choice of a flat salary up front or a percentage of the film's future earnings. I took the up front money. Nobody could have figured what Halloween would ultimately become.