Akshay Kumar-starrer 'OMG 2' and Sunny Deols action film 'Gadar 2' are set for a big clash during the Independence Day long weekend. They have already received an overwhelming response for the advance booking numbers. "Gadar 2" has sold around 56,000 tickets equalling INR 1.47 crore for its opening day, far ahead of ‘OMG 2 which collected INR 25 lakh from just 7,300 tickets. Both movies are poised to do well at the box office in the extended holiday weekend.