Visual effects play a significant role in film-making. Often times, the locations you see in the movies are actually green background scenes. Here’s a sneak-peek at what happens ‘parde ke piche’!

1. Chennai Express

2. Once Upon A Time In Mumbai

3. Bhaag Milkha Bhaag

4. Ready

5. Ra.One

6. Special Chabbis

7. Cocktail

8. Chandni Chowk

9. Oh My God!

10. Madras Cafe

11. Samrat & Co

Inputs:indiatimes