Easter egg: On the 2-disc Special Edition, select the "Their World" option, then go to "Inside The AllSpark" and press the left arrow button. An icon will appear next to the "Main Menu" text at the bottom. Press the "Enter" button and enjoy.
Easter egg: On the 2-disc Special Edition, select the "Our World" option, then go to "I Fight Giant Robots" and press the down arrow button. An icon will appear next to the "Main Menu" text at the bottom. Press the "Enter" button and enjoy.
Easter egg: On the 2-disc Special Edition, select the "Set Up" option, and press the left arrow button. An icon will appear at the bottom. Press the "Enter" button and enjoy.
Easter egg: After watching the movie, stay all the way through the credits. A bonus menu will appear.
Easter egg: On the Region 2 UK two disc DVD version, on the disc 2, select 'Our World', scroll down to 'Battleground', it should highlight a Japanese symbol to the left of 'MAIN MENU', this is the Bay Bot Easter Egg.
Easter egg: On the UK Region 2 two Disc DVD, select disc 2, select 'Their War' then select 'Trailers' and scroll down and a Japanese character will appear next to 'MAIN MENU'. This is a deleted scene involving a woman losing her clothes.
Easter egg: Not sure ifs it on the Standard DVD as well, but on HD-DVD on the 2nd disk, when you highlight 'Our World' and press left on the remote, Megatron's head pops up to the right and by pressing enter you view the DVD's credits.
Easter egg: On the 2-disc Special Edition, select the "More Than Meets The Eye" option, then go to the "Trailers" submenu. Go down to the "Theatrical Trailer 4" and press the right arrow button. An icon will appear next to the "Main Menu" text at the bottom. Press the "Enter" button and enjoy.
Easter egg: On the UK Region 2 two Disc DVD, select disc 2, select 'Their War' and scroll down and a Japanese character will appear next to 'MAIN MENU'. This is Michael Bay doing a screen test with an unlucky Mercedes Benz.
Answer: Primus created the original Thirteen Transformers, later known as the Thirteen Primes, to help him defeat his nemesis, Unicron. The Thirteen Primes were the start of the Cybertronian race, which eventually turned on itself when Megatron, formerly Megatronus, started the War and his Decepticon faction.