/> Hirani is thunderstruck. "I can't tell you what a pleasure it was to work with Mr Bachchan. We shot the hair-oil ad with Ninad Kamath and Mr Bachchan. I didn't have to direct him. He directed himself.

He automatically switches from the feature to ad mode. He infects the whole unit with his energy. We were supposed to take two days. We wrapped up in a day. "

Now Hirani is hoping to work in a feature film with the Big B.

This was Hirani's second ad after the release of Lage Raho Munnabhai. "I've also shot an ad with Sanjay Dutt, again for a hair oil...Both Mr Bachchan and Sanju for hair oils!! I shot Sanju's ad a month back. I've an ad outfit from before I started making feature films. That continues to be functional for my extra kharcha-pani."

Now that Mira Nair's plans to do a Hollywood version of Munnabhai MBBS with Chris Tucker have been put on hold because of scripting issues, all eyes are set on the third part of the Hirani's Munnabhai trilogy to carry the laugh –able legacy forward.

Munnabhai will this time go to the US.

Says Hirani, "It is true that Mira has put her on film on hold. But Munnabhai and Circuit are very Indian characters. They'll remain Indian even when I take them to the US. I'm being told that it will be looked at as a crossover film. But I don't think so."

Lage Raho...Munnabhai was directly pitched against Rang De Basanti at all the awards functions. Hirani loves the other film. "I'd have loved to make Rang De Basanti. What a s script! There're no scripts around. I know anything will work with Munnabhai in it. But I won't make the third Munnabhai until I'm satisfied with the script. "