It is easy to take potshots at this. It is absolutely horrible technically in every respect. And it is easy to imagine that the childish earnestness of those involved blinded them from critical vision -- or perhaps that no great art can come from a fundamentalist world. Who knows?
But there are other vapid movies out there too. What makes this (and 'Omega Code') so fascinating is that they were not intended to entertain, even to enlighten, but to proselytize. And some day soon this crowd will cease to be so amateurish -- down the street from me is Pat Roberstson's film 'university' with a virtual endowment of billions and the intent of being professionally slick. What then?
It is an interesting question. As it stands now, we have films that are made for profit. Most of these pander in some way. Then we have films that are made as art. Some of these pander as well. And we have propaganda films of various sorts whose purpose is purely to convince/convert/affirm. Of these, the latter are the only truly pornographic.
I think that as religious films become better and more common (they will), they become fair game for satire. Imagine a Scream about the apocalypse cults. Then instead of massive protests against a respectful film like 'Last Temptation' (shots were fired here!) what will we get? Imagine class war.
The film and the books behind it aren't very biblically accurate in any case. The rapture metaphor comes from Darius, who incidentally rebuilt the temple the first time, and invented modern Judaism as an experiment. Currency has been unified since then, 2500 years with only the names kept nationally. That's what is referenced in the B. Darius also revived Zoroastrianism which mixed with later Judaism to produce the essenism of John which Jesus adopted.
This in fact is not a film with Christian theology at all. They even fumbled that.