Dil Se
this is a great Bollywood film that I believe everyone should give a try if they consider Bollywood to be an unrealistic/crap. especially if you're someone willing to give Bollywood a chance or is about to dabble in it for the first time. It's a great star-crossed love story that takes themes from the Arabic mystic stages of love* but posits it on real world situations (terrorism).
starring Shahrukh Khan and Manisha Koirala. Great acting from them both in this film.
*Arabic mystic stages of love are hub (attaction), uns (infatuation), ishq (love), iqeedat (obsession), ibadat (worship), junoon (madness), muat (death).