Yesterday, I discovered that someone had visited my blog as a result of the query: "What lettering font was used in Frank Miller's 300?"
It seemed like a very specific question, and I felt kind of bad that whoever had asked it didn't find an answer here, nor, indeed anywhere else if my own Googling of the same query is any indication.
It appears that Miller does his own lettering -- he certainly did for Sin City and 300 appears to be the same style and there's no credit for a separate letterer.
However, looking at the irregularity of the spacing, the hyphenation and the fact that the lines of text aren't accurately centred*…
|300 © Frank Miller -- Art by Frank Miller & Lynn Varley|
*Note that I don't say this as a criticism!