Hrithik Roshan opened up about getting into the character of Rohit for his film
Koi... Mil Gaya. He said, "I locked myself in a hotel room, played with the Rubik's cube. I was trying to see what all would be conducive to becoming this character, be it props or clothes. I was really enjoying that process." He also revealed that he was surrounded by actors like Rekha and Preity Zinta who never "judged" him.
Watch the full interview on Film Companion:
https://www.youtube.com/watch?v=cD-6IOCN-os