How Watchmen built its Peteypedia

Vulture

“We wanted to do our equivalent of additional materials — the kinds of things that you find in the original comic that comes at the end of every issue,” said Jeff Jensen, the former EW critic who joined Watchmen as a writer, of FBI Agent Dale Petey's research. “We knew that we have constructed a rather huge iceberg, but we were only ever going to play on the top of it, in terms of what’s onscreen,” Jensen added. “There was a lot below it that we wanted the viewers to know that we had worked out.”