I chanced upon a movie on being shown on TV a few years ago. Due to circumstances at that time, I was able to see only a small portion of it (only one scene, about 5 to 10 minutes) near the beginning.

In the scene, a group of people was being held hostage in an [underground?? ] room or something. The people included a preacher or something, and the exchange of words between hostage-taker and hostages led to the subject of religion in which the hostage-taker was hurling accusations against mainstream religion and preachers.

I am planning to write a hostage-taking screenplay of my own dealing specifically with mainstream christianity, but I would like to view that movie in its entirety so I would like to know the title of that movie. Thanks.