New work for 6 years, "Terminator 4" trailer released

A trailer of the movie "Terminator Salvation" scheduled to be released nationwide on May 27, 2009 was released as soon as possible. Although Arnold Schwarzenegger, who had starred in the past for the first time in 6 years since the previous work "Terminator 3" released in 2003, will not appear, what kind of movie will it be?

Details are as below. In the movie "familiar BGM" called "Dadan Dandadan" also flows.
Movie: Terminator Salvation - See new and upcoming movie trailers, videos, and clips from Yahoo! Movies

The scenes appearing in the trailer are as follows.



























There are a lot of fragmentary images and I do not know much about details yet, but at the end I am concerned that something like a huge robot appears.