You might expect that, as the voice of Groot, Vin Diesel's one line in Guardians of the Galaxy will be "I am Groot." That may end up being true, but even that one line needs to be recorded in more than one language.
Diesel has posted a video to Instagram of him recording the line in Mandarin, for Chinese audience. In the accompanying status he says that this is the first time he's ever recorded a movie in Mandarin. Apparently Diesel's delivery of the line is too important to leave to a dub.
In Guardians of the Galaxy, in the far reaches of space, an American pilot named Peter Quill finds himself the object of a manhunt after stealing an orb coveted by the villainous Ronan.
Guardians of the Galaxy opens August 1.