Just for fun don't take it seriously
Hollywood: Aliens attack only America
Asteroids fall on America
The world is about to end- saved by Americans
The whole world revolve around America
Asteroids will be falling on America only- President will break protocols and will perform stunts and action to save the country. Scientists will perform all kind of experiments and will observe the monitor every minute to see what is happening. But at the end of the day the world will be saved by our inexperienced hero who has no knowledge about science, asteroids or about anything. In the end, Hero and his love interest will k**s while the world is still damaged by the asteroid!!
Bollywood -
Bollywood: Asteroid attack- Hero will enter with a song, then will save the heroine from goons, then they fall in love, song some songs.
Asteroid attack- slow motion, camera on hero, then heroine, then supporting actor, then background artist, everyone giving their reaction shot (while Dhoom Tana na plays in the background). Out hero chants Hanuman Chalisa, God enters the body of our hero giving him invincible powers. He takes the asteroid out of space and destroys it.
Then he returns to his area, everyone claps for him. He goes to his girlfriend to sing another song. The End.
Now on a serious note
- Bollywood films use music and songs way more than Hollywood. Hollywood use songs mostly in the background or if they are musical. Indian films have music and even dance mostly inherent to the narrative.
- In Hollywood Sci-fi, animation and fantasy are commercially viable genre. Even their animated features have a budget of 100–300 million dollars which translates into more than thousand crores rupees. In Bollywood the animation and Sci-fi genre are not as developed. Our highest grossing animation film is Mahavtar Narasimha with collections of 300 crores rupees but by and large we hardly see animation films, even films like interstellar or inception cannot be conceived in Bollywood because it will lack the commercial elements to make its successful and niche subjects are hardly Blockbusters in Bollywood.
- The market- despite having much larger population Hollywood has a wider exhibition with more theatres, more wider overseas reach and more revenue. India has only 12000 theatres with sizeable amount of theatres in the South where Hindi films do limited business. Our ticket prices are also way cheaper than Hollywood. So our revenue is expanding but it is not comparable to Hollywood
- Hollywood is an actual place in America which became associated with film production in early 1910’s due to availablity of land, and cheap cost of production. By 1920’s Hollywood emerged as a town around which Hollywood studios established their offices. Bollywood is not a place but is basically a derivative of Bombay and Hollywood because Bombay was the centre of Hindi cinema so it got identified as Bollywood a term many people don't find amusing. Also the regional languages have their own wood- Kollywood for Tamil, Tollywood for Telugu, Sandalwood for Kannada, Tollygunj for Bengali, Bhojwood for Bhojpuri etc.
- American Cinema organise Academy awards also known as Oscar which has huge reputation all over the world with almost every country vying for it. Indian awards don't have the reputation. We have National Film awards which are given by Indian government and we have Filmfare awards which is the most significant awards for Bollywood film but our award shows don't have the same reputation as Hollywood.