Blitz conceived a rough storyline for the film while making "Spellbound", a documentary about 1999's Scripps National Spelling Bee, but an HBO Films executive persuaded him to write the film based on his own adolescence when he told her about his experiences as a stutterer. The film's producers visited several cities in the United States and Canada; Thompson was cast based on a tape which his agent had sent and a follow-up audition after the first actor cast in the lead was forced to pull out. The film was shot over 30 days in Baltimore, Maryland and Trenton, New Jersey.