"(Producer) Sanjay Leela Bhansali was keen we watch the movie together and we laughed through it. He's ecstatic, but I'm more critical," Farah said in a statement.
"Still, I won't be embarrassed by it and won't have to skip town as I'd thought. But this will be the first and last movie I'll act in," she added.
Farah, who has choreographed several popular Bollywood numbers, turned director with "Main Hoon Na" in 2004. She latr directed "Om Shanti Om" and "Tees Maar Khan".