It was one of the biggest box-office hits of 2008, but you probably never heard of the movie because of its Christian-based themes.

Produced for $500,000, the film "Fireproof" grossed $33 million at the box office, making it one of the most profitable films of the year.

It's still playing in some theaters, but you have an opportunity to see the movie for free thanks to a Berks County church.

Exeter Bible Church, located off Route 422 near Birdsboro, is offering a free screening of "Fireproof" on Sunday, Jan. 11, at 6 p.m. The film is rated PG.

The church is also planning to launch a "Fireproof" Group Study on Jan. 25 through March.

Here's a synopsis of the film from the church's Web site:

Capt. Caleb Holt lives by the old firefighter's adage: Never leave your partner behind. Inside burning buildings, it's his natural instinct. In the cooling embers of his marriage, it's another story. After seven years of marriage, Caleb and Catherine Holt have drifted so far apart that they are ready to move on without each other. Yet as they prepare to enter divorce proceedings, Caleb's dad asks his son to try an experiment: The Love Dare. While hoping The Love Dare has nothing to do with his parents' newfound faith, Caleb commits to the challenge. But can he attempt to love his wife while avoiding God's love for him? Will he be able to demonstrate love over and over again to a person that's no longer receptive to his love? Or is this just another marriage destined to go up in smoke?

For more information about Exeter Bible Church or directions, check the church's Web site, http://www.exeterbiblechurch.org/