Karan & Rhea in ‘Hum Tum’ (2004)
Saif Ali Khan plays the role of Karan a cartoonist by profession and a Romeo by heart. He has a laid back sort of attitude and believes that girls are like buses because if one goes there is no need to worry as another one will come. He first catches a glimpse of Rhea (Rani Mukerji) at an airport and then starts to befriend her on the flight. However things end on a sour note when he kisses her and she retaliates by slapping him. They meet some months later in New York then a few years later at Rhea’s wedding. Now another few years have passed and Karan is in Paris looking for a story for his comic and by chance he meets Rhea on the train.
With time they become the best of friends and Rhea realises that perhaps their relationship is more than friendship. Unfortunately Karan isn’t aware that he is in love until Rhea walks out of his life. After searching for Rhea around the world he loses hope and decides to write a book using his cartoon characters Hum and Tum which does extremely well. As Karan is leaving a press conference he meets Rhea who has read his book. They both express their love for one another and the end of the film they are seen at the hospital happily watching their new born child.