Just like the prequel, Bernadette, this film lacks the "drama" and "suspense" found in most popular Catholic movies. The 1943 film The Song of Bernadette is one of my favorite films, but it is dramatized and sometimes inaccurate. While Bernadette and The Passion of Bernadette may seem "boring" to some people, they both tell the true story of Saint Bernadette. Her daily life in the convent was often boring and mundane, but that is okay - she became a Saint through the "little things" of daily life.
It was a bit strange to see Sydney Penny (who later went on to become a soap opera star) play Bernadette, but I was able to get past that. The film sometimes portrays Bernadette to be somewhat of a snob, which is not in accordance with the many accounts of her life, but overall I enjoyed it.
The film covers Bernadette's day to day life in the convent, and the persecution she often suffered from some of the nuns. It was filmed in Bernadette's actual convent in Nevers, which made it especially touching. Overall, it is highly recommended!