After a noisy and widely reported fall-out during the making of Abbas-Mustan's "Ajnabee", both Bobby and Kareena had sworn never to work with each other.
So what made them bury the hatchet?
"Not quite!" laughed Akshay Kumar, who is a favourite of the Darshan brothers. He is currently working on older brother Suneel's "Mere Jeevan Saathi", while younger brother Dharmesh's "Bewafaa" is ready for release.
Akshay tells: "It's true that Kareena is a part of the cast in 'Dosti'. But she isn't paired with Bobby.
"Bobby is paired with Lara Dutta. Kareena is paired with me. After 'Aitraaz' and 'Bewafaa' we've become quite an inseparable on screen."
So, for now the Kareena-Bobby cold war is still very much on. But by the time "Dosti" is over, one suspects the duo will be singing a different tune.
Suneel Darshan said: "I'm shooting with Akshay, Bobby and Lara now. Kareena, who's in Bangkok, joins us Wednesday.
"I've finished shooting 'Mere Jeevan Saathi' with Karisma and Akshay. My 'Barsaat' with Bobby and Priyanka is also nearly complete.
"Hence a film with Akshay and Kareena seems almost inevitable. I feel Akshay, Kareena and now, Bobby, are part of my filmmaking family.
"In fact I think this is the only way to make films. You've to work with people with whom you share a comfort level.
"It's the only way to survive in these times of recession when the biggest films are flopping. I'm blessed to have as many as three big projects on the anvil."