One thing refreshing about Pompeii is that it does not pretend that the ending is going to be a surprise unlike other dramatic history thrillers. In fact, during the opening credits it pretty much cops to the fact that the film ends when the volcano blows.
What is interesting is that before all of the ash rains down, there is a subplot going on in the middle with gladiator action of the stealing most of the film. In fact, one of the best moments of the film is when all of the characters are busy fighting Gladiator style and see the ash coming down. The look of confusion in their eyes almost turns it into a spoof film.
The actual plot of the film centers around a slave named Milo who is now a gladiator who is attempting to find his true love. Of course, the woman that he loves has already been promised to a Roman Senator who is also corrupt and a bit of a womanizer. Therefore, the gladiator needs to fight hard to save his love from certain doom.
What he does not realize is that while he fights for her love Mount Vesuvius is going to erupt brings down a brand new and unexpected danger onto them.
Milo is portrayed by Kit Harington and his love-interest is played by Carrie-Anne Moss. Other notable stars in the film include Kiefer Sutherland and Jared Harris.
Most of the film is pretty much about thrill and gore, and really you could just about watch any gladiator film and get the same effect because the major twist, the volcano, is not really a plot twist for anyone that took a basic history class. However, those that like a bit of action and corny situational drama might enjoy it.