Complex sentence: The majority of the 3D was created through stereo rendering the CG at Framestore with the rest converted into 3D in post production, principally at Prime Focus, London with additional conversion work by Framestore.
Split into simpler sentences: The majority of the 3D was created by stereo rendering the CG at Framestore. The remaining footage was converted into 3D in post productionprincipally at Prime Focus, London, with additional conversion work by Framestore.