It's a redemption story

Rating: Null/10 (19 September 2004)

I really think the core of the movie is redemption through love. Christopher Walken's character was able to find peace through his love of his wife. On the surface, it appears that he is just a playboy, but the lunch scene, plus his affection for Denzel, show he isn't that shallow.
Denzel Washington's character clearly returns from the dead (figuratively) because of love (as does Dakota's mom). His willing sacrifice is the final act of redemption. (I think Denzel's grandmother would approve of this film.)
10 minutes into the DVD, Mark Anthony is reading Denzel's resume. If you pause & advance frame by frame, you see the resume is actually for a Mr. Rosche, NOT Mr. Creasy (Denzel's character). Don Rosche was a technical adviser (weapons & bodyguard stuff, I think) on the film. He also raises alpacas (Pax River Alpacas).