First of all, this movie talks about how the Lord would do anything for you, even if you've turned your back against him, how much he cares for you, and how much he loves you. The Lord tells Hosea to marry a harlot, and Hosea being the good man he is, followed the Lord's instructions and didn't hesitate. The Lord would show how he felt, through Hosea. In my opinion, this movie skillfully portrays the lesson as to why the Lord did what he did, and with the modern-day story of the 5 kids, 2 of which hated each other, this lesson would stick to most people, and be applied to their daily lives, although this movie was not made as well as most, the lesson is still there for us to learn from.
Secondly, this movie sometimes paraphrases or goes into too much detail compared to the book of Hosea. In the book, it doesn't say how Hosea met Gomer, or things like that. And sometimes it skips important things that were mentioned in the bible, although it was mildly touched on, like the name of the three offsprings of Hosea and Gomer, and their names and what they represent.