It was about the phenomenon of the year 2000. Protagonists of the movie fight off some satan-worshippers in a cathedral. And in the end we realize that if they hadn't stopped them, the world would have come to an end at the entrance to the new millennium.

https://en.wikipedia.org/wiki/End_of_Days? (https://en.wikipedia.org/wiki/End_of_Days_%28film%29)

https://en.wikipedia.org/wiki/End_of_Days? (https://en.wikipedia.org/wiki/End_of_Days_%28film%29)

Wow yeah that is it. I am so surprised that arnold was in this movie. Thanks a lot :)

You're welcome.