Terminator Salvation director McG says his time-travelling robot film is more believable than Michael Bay's Transformers.
The two movies go head to head in the summer at the box office but McG reckons there's no competition between the robots who turn against humans and the toy-based Transformers.
"I think Transformers is a terrific picture, but that's a picture whose genesis is in a toy," the director told Empire. "They're sort of more colourful and optimistic and the pictures are sort of breakdancing and flips and backspins," he added.
"But ours is a very different, real world. Ours is a world of, 'This is where we can be ten years from now'. The whole idea for doing this movie was to honour the first three movies... But begin again!"
Bay previously started the polite war of words with McG when he said the Charlie's Angels helmer was copying Transformers by including a giant robot in the new film (The Harvester).
Terminator Salvation and Transformers 2 Revenge Of The Fallen are scheduled to reach UK cinemas in June.