Lol, I haven't watched Kaadhal Kavithai myself... Just in bits. But if you are bored and want to watch some good south indian movies - Then I'll say try 'Aithe' in Telugu. It's a short movie, and you can get the movie even if you don't understand the language. Here, check this link... Other parts are available on the side-bar : http://www.youtube.com/watch?v=ugWbRAI_xlU
I think you missed your calling! You open new doors everyday-a whole new world of movies now! In the first clip,the music that played as the credits rolled is just up my street! So I'm going right back to catch the whole movie--new addiction! Did you find the songs of Ek tha...?