mill ion , ▁and ▁gross ed ▁€ 6 5 . 3   mill ion ▁becoming ▁and ▁currently ▁the ▁highest ▁gross ing ▁Italian ▁film ▁of ▁all ▁time , ▁sur pass ing ▁the ▁record ▁set ▁by ▁Z alone ▁and ▁N un z iante ' s ▁ 2 0 1 3 ▁film , ▁So le ▁a ▁cat in elle . ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : Fil ms ▁set ▁in ▁Norway ▁Category : Ital ian ▁films ▁Category : Ital ian ▁comedy ▁films ▁Category : 2 0 1 6 ▁comedy ▁films <0x0A> </s> ▁Princi ple ▁Sim m ons ' ▁cit rate ▁ag ar ▁is ▁used ▁for ▁differenti ating ▁gram - negative ▁b acter ia ▁on ▁the ▁basis ▁of ▁cit rate ▁util ization . ▁It ▁is ▁useful ▁for ▁selecting ▁for ▁organ isms ▁that ▁use ▁cit rate ▁as ▁its ▁main ▁carbon ▁and ▁energy ▁source . ▁It ▁is ▁a ▁defined , ▁select ive ▁and ▁differential ▁medium ▁that ▁tests ▁for ▁an ▁organ ism ' s ▁ability ▁to ▁use ▁cit rate ▁as ▁a ▁sole ▁carbon ▁source ▁and ▁am mon ium ▁ ions ▁as ▁the ▁sole ▁nit ro gen ▁source . ▁ ▁The ▁medium ▁contains ▁cit rate , ▁am mon ium ▁ ions , ▁and ▁other ▁in organ ic ▁ ions ▁needed ▁for ▁growth . ▁ ▁It ▁also ▁contains ▁b rom oth ym ol ▁blue , ▁a ▁p H ▁indicator . ▁B rom oth ym ol ▁blue ▁is ▁green ▁at ▁p H ▁below ▁ 6 . 9 , ▁and ▁then ▁turns ▁blue ▁at ▁a ▁p H ▁of ▁ 7 . 6