Two (clergy) guys and a girl
Keeping the Faith (2000), directed by Edward Norton
Starting a review with a plot summary is commensurate with saying, "You know, that Shakespeare is almost as good as Jackie Collins." Of course, now I'm going to do just that, but I have a reason: a cursory look at the plot of Keeping the Faith can trick readers into thinking something religious goes on, and I need to correct that impression as early as possible.