Trivia / Koi... Mil Gaya

• Actor-Shared Background: The bullying that Rohit endures in the movie is based on events from Hrithik Roshan's childhood when he too was bullied.
  • Another tragic example is the car crash as Priety Zinta parents were involved in a near-fatal car crash which killed her father and injured her mother when she was thirteen.

• All-Star Cast: Hrithik Roshan, Priety Zinta, Rekha, Prem Chopra and Johnny Lever.

• Breakaway Pop Hit: The songs Idhar Chala and Haila Haila.

• Casting Gag: This wouldn't be the last time Hrihtik Roshan would play a disabled person.

• Career Resurrection: A career turning point for Hrithik Roshan.

• Creator Cameo: Director Rakesh Roshan plays Sanjay Mehra.

• Dyeing for Your Art: Averted, Hrithik Roshan wasn't able to reduce his weight for the role of a young adult because he was shooting other films at the same time. Instead, he wore baggy clothes that hid his real proportions and had a unique hairstyle that made his face look thinner.

• Enforced Method Acting: Rekha warned Hrithik that she would slap him hard during the scene where she discovers him using the computer. He thought she was joking, but when the camera rolled, Rekha did hit him hard, which left him shocked.

• The Cast Showoff: Hrithik Roshan once again showed off his incredible dance moves.

• Those Two Actors: The second and most successful pairing of Hrithik Roshan and Priety Zinta after Mission Kashmir. Their chemistry in the movie was highly acclaimed.
  • Also one for Rakesh Roshan and Rekha who are close friends in Real Life and former costars from the 70s and 80s

• What Could Have Been: Aishwarya Rai was initially offered the role of Nisha but declined.
  • Rishi Kapoor was offered the role of Sanjay Mehra but recommended that Rakesh Roshan play the character himself.

  • An alternate ending was considered where Jadoo took away Rohit's powers permanently, and the disabled Rohit looks up at the sky and says thank you. The director felt that the audience would respond better to a happy ending. So the end with Rohit getting back his powers was shot instead.