One of the items I didn't post about for Botcon 2011's Day 3 was the predicted showing of footage from Transformers: Dark of the Moon. While at the Transformers Hall of Fame event, the audience was able to view the first five minutes of the movie, three scenes and a montage of clips. A summary is below with detailed description can be found here.
The first five minutes cover The Ark leaving Cybertron but while crossing through the space bridge is damaged by a Decepticon attack leading to it crash landing on Earth. The landing, detected by NASA leads to the space race to the moon and the secret mission on the first lunar landing that was shown in the preview trailer that including the recovery of an unknown item from the ship.
The first scene is a sequence of Bumblebee protecting Sam from explosions by flinging him through the air in while in car mode, transforming to robot to shield him from debris than catching Sam and transforming back to car mode. The second scene is a longer look at the "Birdmen" as four Ospreys of troops arrive in Chicago when attacked. Three are destroyed by Starscream but one manages to deploy troops who then must fly through the city to avoid an attacking Decepticon craft. The third scene is part of the sequence of Prime flying through the air to attack Driller as it destroys a skyscraper containing Sam and co.
The clips included a look at Carly, the Wreckers Topspin and Roadbuster as they attack in car mode and more of Bumblebee Stealth Mode with him using the weapons to destroy guard stations.