Emraan Hashmi will be seen essaying the role of India's ex cricket captain Mohammad Azharuddin in Anthony D'Souza's upcoming biopic, but what made headlines more than the actor's preparations were speculations on who will play his second wife. Earlier, reports suggested that Kareena Kapoor was offered the role, but she had turned it down. Then there were rumours that Kriti Sanon would play Bijli in the film. Finally, the makers made an official announcement about Nargis Fakhri having been signed for the film, which has already gone on floors.

Much like this instance, the casting or performance of supporting actors/ second leads in biopics have often created more buzz than anticipated. So much so, that they have stolen the protagonist's thunder. hitlist takes a look at a few examples from the past...