Bollywood heartthrob Saif Ali Khan's favourite role in real life is being the devoted big brother.

Saif's actress sister, Soha Ali Khan, told Screen, a weekly movie newspaper, that Saif helps her choose her films and keeps her from getting carried away by a filmmaker's spiel that a script was written with only her in mind.

Saif has been able "to see through that and tells me, 'Soha, this is rubbish.' And he has been right," Soha said.

Soha added that it's natural to ask her brother for advice.

"He is experienced enough to read scripts and visualise the film and its outcome, and it is sensible for me to take advantage of that," she said.

Soha's Bollywood journey so far has been quite interesting. Her last release, Rang de Basanti, was a blockbuster however, she has several duds to her credit like Dil Maange More and Pyaar Mein Twist.