Overall good visual design, looks like a painting in some frames, which would be fine, for a painting. Choreography is cumbersome, and even the talent seems to be uncomfortable with the stately pace. This could have been used for dramatic effect, but after an hour or so it becomes tedious.
Successfully illustrates some of the philosophical and theological ideas of Pascal. Moves slowly. Lots of expository dialogue, and visual examples (by the genuinely animated Pierre Arditi), are unfortunately not expounded upon in the plot. The film focuses insularly on Pascal's life, which, while somberly plagued by poor health and depression, does not make for gripping narrative.
The supporting cast are myriad, and generally interchangeable. With a few exceptions (the father, and one scholar), there are no characters which are able to generate sufficient conflict. No one is written strongly enough to play on the same level, and conflict flags as a result.
If the film had managed to focus on major political events rather than narrate them (show don't tell), there might have been some applicability to all the philosophy being bandied about. As it stands, it comes off as pretentious.