If I remember right...Rahul Bhatt was offered several movies by his dad but he kept refusing as he wanted something better and the roles kept going to EH. Then he got caught in the David Headley controversy and did BB4 despite his dad advising him not to. So he is kinda like any other struggler in the film industry rather than a star kid.
As for Pooja Bhatt she was basically really muhphat and a poor actress. After a few films her lack of charisma and acting skills got exposed but she didnt care. Basically both his kids have inherited his 'I care a damn' attitude which is fine for directors and producers but not actors.
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