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.

Kirk Cameron accepted a donation to his charity, Camp Firefly, instead of a fee for starring in the film.

Filmmakers originally planned to use mouthwash and Gatorade for the hot-sauce-drinking scene but then decided to use something nonpoisonous in case others decided to try it. At first, both Caleb and Wayne just had tomato juice, but for each take they added more Tabasco sauce to Wayne's, until by the last take it was pretty much entirely hot sauce; when he says "My mouth's on fire!" he really means it, and his running off to rinse his mouth is only too real.

The car used for the car accident had already been wrecked, so a different car was used for the earlier scene. Filmmakers were originally moving it with a wrecker, but they had trouble getting it in place each time as it was falling apart. What they really needed was a forklift truck. Amazingly, a man living right across the track owned a forklift and, having seen both of Sherwood's previous films, was glad to help. There was a man who lived right across the track and owned his own forklift. Producer Stephen Kendrick said, "Only God could make this happen. How many people have a forklift in their backyard?"

While filming the house-fire scene, one local television station showed up, thinking it was a real fire.

Continuity

When Catherine drives up to the firehouse to tell Caleb she loves and forgives him, the bays are full and no trucks are in front of them, but when he comes out to see her the two bays are empty and the trucks are sitting out front.

When the firemen respond to a car wreck, the passenger in the front seat of the car on the tracks disappears and reappears between shots.

Caleb is dispatched to the house fire responding as Engine 1, but when he arrives at the fire, he is on Engine 7.

Michael takes a burger off the grill and puts it on a plate; then the camera cuts to another angle and the burger is no longer on the plate.

Just before Catherine 'runs into' Gavin for the first time, she picks up her purse twice.



Revealing mistakes

In the train scene, they are unable to stop the train so they must lift the car off the tracks. The train passes at full speed (or what the viewer deems to be full speed.) At the very end of the sequence, in an aerial shot, the train is seen on the other side of the crossing. It could not have stopped that close to the emergency scene if it was going at 'full speed' when they were moving the car off the tracks.

When Caleb's father tells him that Caleb's mother was the one who did the Love Dare, the two men are on a long path in the middle of the woods, at least several hundred yards from Caleb's house. Caleb, an athletic fireman, immediately sprints back to his house to apologize to his mother, but his father, nearly twice his age, arrives at the house about 10 seconds behind him and not even out of breath.



Miscellaneous

During his talk with Caleb about the sanctity of marriage, Michael's nametag reads "W.C. Simmons." "Michael" begins with neither a "W" or a "C."



Errors in geography

Mixture of Southern and Standard American accents in the Holt family. Actor Kirk Cameron hails from Los Angeles.