'Sony Pictures Imageworks designed the visual effects sequences.[54] Burton felt 3D was appropriate to the story's environment.[11] Burton and Zanuck chose to film with conventional cameras, and convert the footage into 3D during post-production; Zanuck explained 3D cameras were too expensive and "clumsy" to use, and they felt that there was no difference between converted footage and those shot in the format.[55] James Cameron, who released his 3D film Avatar in December 2009, criticized the choice, stating, "It doesn't make any sense to shoot in 2-D and convert to 3-D".[56]'
'Sony Pictures Imageworks designed the visual effects sequences.[54] Burton felt 3D was appropriate to the story's environment.[11] Burton and Zanuck chose to film with conventional cameras, and convert the footage into 3D during post-production; Zanuck explained 3D cameras were too expensive and "clumsy" to use, and they felt that there was no difference between converted footage and those shot in the format.[55] James Cameron, who released his 3D film Avatar in December 2009, criticized the choice, stating, "It doesn't make any sense to shoot in 2-D and convert to 3-D".[56]'