I think i will download it and i will confirm it. A friend of mine says that is a mix of "One" by U2 and "You are my reason to be", from an american-japanese group which i don´t remember the name.
No it isn´t that one. It´s the larger trailer, also i am not referring to the song that plays with the african chorus. The one that plays in the trailer when we see the helicopter crashing.