. ▁Hans ▁Z immer ▁described ▁his ▁work ▁for ▁this ▁film ▁as ▁different ▁from ▁previous ▁works ▁by ▁him , ▁thus ▁reve aling ▁one ▁of ▁the ▁them es ▁for ▁the ▁film , ▁which ▁was ▁first ▁heard ▁on ▁the ▁website . ▁ ▁On ▁March ▁ 3 1 , ▁ 2 0 1 4 , ▁a ▁track ▁called ▁" It ' s ▁On ▁Again " ▁was ▁uploaded ▁to ▁Sound Cloud . ▁It ▁is ▁performed ▁by ▁A lic ia ▁Ke ys ▁featuring ▁K end rick ▁L amar . ▁Ke ys ▁announced ▁the ▁song ▁on ▁Twitter ▁and ▁cred ited ▁Z immer ▁and ▁Williams , ▁along ▁with ▁L amar ▁and ▁herself ▁for ▁the ▁song , ▁indicating ▁the ▁song ▁as ▁a ▁part ▁of ▁the ▁film ' s ▁sound track . ▁Web b ▁described ▁the ▁song ▁as ▁" up be at ▁and ▁exc iting ". ▁ ▁Mark eting ▁The ▁release ▁of ▁the ▁film ▁in ▁the ▁United ▁Kingdom ▁was ▁moved ▁to ▁April ▁ 1 6 , ▁ 2 0 1 4 , ▁two ▁days ▁ahead ▁of ▁its ▁original ▁April ▁ 1 8 ▁date . ▁Dead line ▁reported ▁that , ▁in ▁addition ▁to ▁the ▁production ▁budget , ▁the ▁film ' s ▁market ing ▁budget ▁was ▁$ 1 8 0 – 1 9 0 ▁million . ▁ ▁On ▁July ▁ 1 7 , ▁ 2 0 1 3 , ▁Sony ▁released ▁a ▁clip ▁from ▁the ▁film ▁with ▁the ▁first ▁released ▁foot age ▁of ▁Jam ie ▁Fox x ▁as ▁Elect ro ▁to ▁encou rage ▁attend ance ▁at ▁the ▁panel , ▁at ▁the ▁San ▁Diego ▁Com ic