It was awesome.
The general Enrique Gorostieta gave a few short speeches about freedom (being an atheist liberal that's expected), but it's pretty easy to ignore because there are plenty of martyrdoms throughout the movie, and it really drives home what the Cristero movement is truly about; the Catholic Faith. At the end, Gorostieta converts and makes his confession before going to his death.
And I though it was SO ironic that in the movie Gorostieta refuses an AGREEMENT offered by Calles, negotiated by Rome, which is of course a deadly compromise.
And contrary to what I expected, they made Fr.Vega look like an okay guy with some rough edges. They definitely didn't exploit the Train Burning incident. They actually made it look like it was an accident.
There was only one bad part though - where the women have to smuggle ammunition, they're shown in their bras and bloomers for a few seconds. So that's the only part a guy would have to look away.
In spite of that, I'd still encourage you to go see it.