See also:

A priest walks into a bar... he starts to tell the story of three best friends who grew up to be a priest, a rabbi, and a female corporate executive.

Rabbi Jake Schram (Ben Stiller) and Father Brian Finn (Edward Norton) are the god squad. A couple of leather-coated, hip, crowd-pleasing purveyors of faith. Don't change that dial! This is a film that doesn't require one to be a believer. It is about friendship and love, and having faith in one's friends -- and it tells the story well.

When Anna Riley (Jennifer Elfman) returns to New York, and walks back into their lives, she is both a part of the 'three musketeers' and a potentially divisive force. She leads both men to question themselves and what is important to them.

Movie poster, Keeping the Faith
If you have to believe in something, you might as well believe in love.