Goof: As Griffin is making small talk with Dr. McKay, one of the things he mentions about Christopher Columbus is that he was the first who proposed the Earth wasn't flat. This is a a very common misconception, which seems to have come from an 1828 novel written by American author Washington Irving. In fact, the Earth was known to be round since before the time of Christ, and any educated person (including the Church and the Nobility) or even ordinary sailors would have known this around Columbus' time. What he argued was that the Earth was smaller than what everybody else thought, so a western route over the Atlantic Ocean to Asia from Europe would be a shorter than expected trip. As it turns out, Columbus was actually wrong! The Earth's size was fairly well known from the time of the ancient Greeks, and Medieval scholars had a number very close to modern measurements.