Yes, many actors are becoming more fair as years pass by.
We do have an actor 'Kalabhavan Mani' Villain of Gemini. When he came to industry, he resembled a 'firewall put into water'.
But now, his skin colour has very much reduced its darkness.
Actors spend major amount of their money for beauty treatments.
Michael Jackson is the perfect example who gave preference to his skin color he never wanted to be looked black. :blink:
I have seen Rekha, Shridevi, Hema Malini, Smitha Patil and many more in real life, they look so very different in real life than their reel life. Actually this is make up that makes all the difference. You can see all Tv artists look the same complexion.
Screen image differs from real. Color is not significant for screen. A screen test is held to see how you will look on screen. Rest is make up and beauty treatment, camera technology.