This seems to be a case of BLATANT COPYCAT act! But who is copying whom? The answer is obvious!
The Indian Sci-Fi film Enthiran co-written and directed by S. Shankar, and featuring Superstar Rajinikanth and Aishwarya Rai in the lead roles, is going to be released worldwide on 1 October 2010 along with its dubbed versions: Robot in Hindi and Robo in Telugu.
But the American Sci-Fi film “Terminator Salvation” directed by McG and starring Christian Bale and Sam Worthington (The fourth installment in the Terminator series), was released on May 21, 2009 in the United States and Canada, followed by early June releases in the United Kingdom, Australia, New Zealand, and South Africa.
So, obviously Enthiran did not exist when Terminator Salvation was produced or released!
This is not the only picture that looks similar in appearance in both the films. You can find many more on the internet, especially on photo-sharing sites like Flickr.com