If any of you want to check out your fav star's bio, please check out wikipedia. It has some info, you want to know about the stars - like their birth date, filmography etc.,
Type your fav star's name in the 'Search' box on the left of the Wikipedia page/screen.
For example, check out
Trisha's Wiki Entry here
and Nayantara's here
I was amazed at the list of movies my fav star Kamal is in.
And then the hero of millions Rajini's Wiki entry here