Fireproof the movie is currently 50% off for $9.95. I highly recommend this movie to everybody. This is a great movie about working through hard times in marriage. Yes, it's a bit cheesy, but it's still great! Some therapists I know show clips to clients. It's great for seeing how to ask for forgiveness and learn to forgive. It has Kirk Cameron from Growing Pains. Good show!
You can also purchase The Love Dare to go along with it. I haven't heard a single couple that has gotten through the entire Love Dare and still had a bad marriage. Some have been on the brink of divorce and been able to turn it around just using this book. (So I've heard)