The Nicholas Cage reboot of the Left Behind series is attempting to breath new life into a story that is fairly worn out.
Although I haven't seen the film, I know that its premise is based on the idea that God will secretly "snatch away" the Christians just before a period of intense suffering begins on the earth under the leadership of the Antichrist.
The belief in a pretribulation rapture is well known in North America. Even people who aren't believers are aware of it. This is probably due to the way it has been woven into various aspects of Protestantism throughout the 20th century.
The problem, however, is that belief in a pretribulation rapture is relatively new in Church history. It began with a prophecy at a prayer meeting in either Scotland or Ireland and moved to the USA with the teachings of J. Nelson Darby and was popularized through the preaching of D. L. Moody and the Scofield Bible. I have told this story to my students a number of times over the years.
Today, in response to the Nicholas Cage reboot, Ben Witherington has produced a short video explaining the (short) history of the pretributlation rapture. If you have never heard this before, I think you will find it quite interesting.
Incidentally,Witherington places the prayer meeting in Glasgow, Scotland. I had once read it took place in Ireland at the home of Lady Powerscourt.