Vivek Oberoi, Ritesh Deshmukh, Aftab Shivdasani, Urvashi Rautela, director Indra Kumar and some more celebs were present at the trailer launch of Great Grand Masti. And the celebs, especially Vivek took the time to answer questions on why Salman Khan ignored him when he came on the sets of Great Grand Masti. Take a look!  Show less