When actor, writer, and producer Kumail Nanjiani was 18, he moved from Karachi, Pakistan - a city of more than 9 million people - to the United States to attend Grinnell College, a small, private liberal arts college in Iowa in 1997. The town of Grinnell’s population was about 9,000 then. Though he had visited New York as a teenager, and “sort of knew America the way it is in movies,” he was not prepared for the cultural shock.