Rajkumar Hirani's well-made "3 Idiots" is on record-breaking spree at the box office. But there is a small slip in this thoroughly entertaining cinematic journey -- TV actress Mona Singh's character is first called Poonam and then Mona a few scenes later.

Mona, who plays Kareena Kapoor's elder sister in the movie, is first referred to as Poonam by her screen dad Boman Irani.

However, Poonam becomes Mona in the dramatic sequence that follows where Aamir Khan, Sharman Joshi and R. Madhavan deliver a baby with Kareena's help through a web camera.