It's Bollywood's self mockery of India, basically saying that Western romance is simple boy-meets-girl & Indian romance is a complex romance, or usually not, between 2 families. I admire the Indian straightforwardness of declaring the nonsense in their society. In contrast, Western romance is equally fueled by acceptance of family & friends, plus a huge chunk of the guy's salary, but it's all glossed over & swept under the carpet here. That message is drawn out through 2 1/2 hours until the predictable end, but it's nicely stylish & visually stunning. They carefully show only the most pristine scenes in India, which gives a nice escape from reality.
The dvd quality upscales absolutely 1st class, so I can't imagine the blu-ray doing much better.