The Interview, the Sony Pictures film about a fictional plot to assassinate North Korean leader Kim Jong Un, opened in more than 300 cinemas across the United States on Christmas Day.
It drew sell-out audiences in many movie theatres, where punters said they were championing freedom of expression.
Seth Rogen, who co-stars in the low-budget comedy with James Franco, and co-director Evan Goldberg surprised moviegoers by appearing at a screening in Los Angeles.
ITV News' Rebecca Barry reports.
North Korea's dispute with the US over computer hacking took a new twist when the communist state lost Internet access for several hours.
A hacker group who claimed to be behind a cyber attack on Sony Pictures have posted a message online apparently mocking the FBI.
Events company Secret Cinema is planning to screen a film in protest at what they have called the 'censorship' of The Interview.