The surprise hit drama, which stars Kirk Cameron as a firefighter who turns to God to rescue his marriage, has made $30.2 million since it debuted at No. 4 the weekend of Sept. 26 with $6.8 million total receipts in just 839 theaters nationwide.

Fireproof, which had a modest $500,000 budget, opened in more than 80 new theaters at the weekend, and has now been shown in all 50 states.

A marriage book written by the film's co-producing brothers Stephen and Alex Kendrick, The Love Dare (B&H Books/B&H Publishing Group)—which was No. 2 on The New York Times Paperback Advice best-seller list the week of Nov. 14—has a million copies in print, and was in its sixth printing.

A central focus of Fireproof, The Love Dare sat atop the Times Paperback Advice best-seller list the weeks of Oct. 10-24. The Love Dare has also been ranked in the top 10 best-seller lists of CBA and the Evangelical Christian Publishers Association.

Meanwhile, the Fireproof novelization by Eric Wilson and the Kendricks (Thomas Nelson) has more than 90,000 copies in print, and was in its ninth printing, company officials said.