"The Heart Won't Lie." Alright you officer candidates..ready for some action?

Question

1. What rank will these newly commissioned officers, attain?
2. What movie does this mimic?
3. What AWESOME branch of the military services is Vince Gill suppose to be in?
4. As the officer candidates go jogging by, what flag is held by one of them?
5. What 2 stars played the leads in the movie that this video is mimicing?

I KNOW that some of the questions are not answered in the video. A movie fan would know, however. SOOOO, instead of cursing me for having tough questions, just relax and enjoy the music.
http://youtube.com/watch?v=ggAGXqq7mPw&search=Vince%20Gill

Answer 1

I can't believe someone hasn't answered this question....

1. Ensign (O-1)
2. "An Officer and a Gentleman"
3. U.S. Marines
4. it's a guide-on....the unit flag
5. Richard Gere and Debra Winger