20 Things You Didn't Know About Transformers
6. The Cybertronian Dialogue Is Gibberish
The Cybertronian dialogue, which is spoken solely by the Decepticons in the film, is just made up words and sounds. In the behind the scenes clips included on the blu-ray we can see Hugo Weaving, the voice of Megatron, hilariously improvising sounds.
The only Decepticon that has any English words mixed into their Cybertronian dialogue is Frenzy. His lines are just the word Tutankhamen repeated in various different ways.