Turkish high school students managed to infiltrate the set of Skyfall in Adana, Turkey, and took photos of a fight scene on a mobile phoe, which have been published by Turkish media. According to an article in Hurriyet Daily News:
The trio avoided security guards by sneaking through alleys and climbed over a wire fence into the train station. There, they crawled under train cars and reached the repair depot, where they grabbed off-duty workers’ overalls and helmets.
The original article also carries the photos.