aldikk, well, actually they are. they just have collaborated with LMO to record this track, 'cause cinematic orchestra is not in fact an orchestra, as you may guess. but they did write this. so please check before stating :)
I just finished The Theory of Everything and to my upmost delight, the film featured a couple of songs from Cinematic Orchestra. Everything about the film was beautiful and hearing The Arrival of the Birds and Transformation being incorporated in the film just made everything better for me.