This is far and away my favorite Cecil B DeMille creation. It fully embraces his full-on Hollywood aesthetics - hokey drama, comic-book characters, huge action sequences and, of course, a long runtime. Those traits tend to make his films seem dated and absurd - but in the Western genre they work remarkably well.
Joel McCrea and Barbara Stanwyck are at their most charismatic here - even though Stanwyck is needlessly burdened with a ludicrous Irish accent. Brian Donlevy is a perfect villain (as usual), and Robert Preston is the epitome of the best friend who can't make up his mind which side to be on.
The story clearly has some historical credibility. Of course, in this movie everything is simplified to comply with the dictates of Hollywood melodrama, but the real-world backbone holds up well enough to hold our interest. It also provides a perfect justification for some of DeMille's trademark action sequences. There are multiple train crashes, an 'Indian' (indigenous American!) attack, confrontations in a saloon, a train robbery and a shoot-out or three. Never a dull moment.
What makes this film more enjoyable than other DeMille epics is that it doesn't take itself too seriously. Union Pacific lacks the pretensions of Ben Hur, The Ten Commandments (either version) or Cleopatra. It's also not as blandly melodramatic as films like North West Mounted Police or The Greatest Show on Earth. Oddly enough, I'd say DeMille's next-most-enjoyable film is his other big western, The Plainsman. Maybe the western genre was a particularly good fit for his style. Or maybe this was just a good period for him - he made these two films just three years apart in the late 1930s.
There's no mistaking Union Pacific for a great work of art. But it is fine 'popcorn' entertainment in the classic Hollywood tradition. If you get tired of the neverending reruns of DeMille's later color spectaculars, don't overlook this 'smaller' film.
