Kirk Cameron, a Christian evangelist, refuses to kiss any woman other than his wife. To film a scene in which his character in this movie kisses his wife, the filmmakers had to dress Cameron's real-life wife, Chelsea Noble, as the wife character (played throughout the rest of the movie by Erin Bethea) and shoot the kissing scene in shadow so the difference between Noble and Bethea would not be as evident on screen.
Instead of a fee for starring in the film, Kirk Cameron accepted a donation to his charity, Camp Firefly.
The film made in nine days what Sherwood Pictures' previous movie, Facing the Giants (2006) made in its entire four-month run.
In the scene when Caleb is first reading the "love dare" book, there are books on the coffee table. One of those books is "Facing the Giants", which is the novelization of the Kendrick brothers' earlier movie of the same title.
As of October 25, this is distributor Samuel Goldwyn's highest grossing movie-to-date.