tomus - // You have to choose to believe, or more accurately you go into a temporary suspension of disbelief - you know that thing you do when you're watching a film that allows you to invest emotionally in it and care about the outcome even though you *know* it's really fiction and everyone's acting on a film set.
That's how I think it works. I'm not a believer myself so can't be sure. //
I don't think your scenario stacks up.
As nailit says, watching a film means a considered and agreeable suspension of belief to invest in the enjoyment of entertainment, and at the end, you re-enter 'real life'.
That cannot be compared with what, for most, is a life-enhancing belief that is with them every waking second, and they believe it to be absolutely the truth beyond any doubt whatsoever.
Somewhat different, I am sure you will agree.