James Cameron has once again got on his 3D Soapbox.
This time, he's taken aim at his biggest target yet - Harry Potter and the Deathly Hallows' failed 3D conversion.
The Avatar director, who pioneered the current wave in 3D technology, has previously complained about money-hungry studios' willingness to cash-in on the sci-fi epic's box-office demolishing success.
His real gripe comes with this summer's slew of 2D blockbusters undergoing a paltry post-production 3D conversion. And with the recent announcement that the mooted 3D release for Harry Potter and the Deathly Hallows: Part 1 has been cancelled, Cameron's let rip.
"I maintain you can't do a good conversion of a two-hour movie with high quality in a few weeks like they tried to do with Clash Of The Titans," Cameron ranted.
"I don't mean to throw that movie under the bus because my buddy Sam is in it, but I think everybody realised that this was a point at which people had gone too far."
"You see another stumble with the most recent Harry Potter movie from the same studio making the same mistake - except really getting spanked for it now because they didn't get the film done."
"They announced it in 3D - threw a bunch of money trying to convert it to 3D in post-production and it simply didn't work. They just didn't get it done."