Rarely, you get to see commercially successful yet very profound movies. ‘Guide’ is one such movie. It was a distinct movie by Dev Anand. Though he has made unique type of moives, but Guide is class apart. The end of the movie is a duel between the Bad Guy (within Dev Anand) and the Good Guy (within Dev Anand), this part discusses Bhagvat Geeta at extent and whole of Indian spirituality.
If I write more it would be less, instead watch the video. Apologies I do not have English translation or script of the same. I will try and post that here some time.