Last night, I went to see this movie with my high school discipleship group. I enjoyed it and was pleased at the conversation that it stirred up among the guys as we talked about it over Zaxby's.
The basic premise is that a guy goes around the country and asks a lot of different people what they think about Christians and what they think about Jesus. Pretty soon into the movie, you see that there is a huge discrepancy between people's opinion of the two.
My main take-away from the movie is to seek to love people better. Repentance should be what I'm known for, not condemnation. I want my life to exemplify the truth of Paul's words to Timothy: "Christ Jesus came into the world to save sinners, of whom I am the foremost." That kind of humility coupled with sacrificial service is what makes Jesus look good to the world.
Rather than post more of my synopsis, I'll point you to blog posts by my roommate Scott and by Brett McCracken. I felt like they both had good thoughts.