Hello, I'm trying to find the name of a old movie I saw on TV. It's about the end of the world predicted by a sect, using mathematical calculus.. The sect was living underground and they were planning to die together before the actual end of the world. At the end of the movie, the principal actor looked at the window.. And meteorites were falling from the sky... That's all I know. Can you help me?

Sounds like Believers (http://www.imdb.com/title/tt0878652/)

Thank you very much, u are right!!

You're very welcome.