
The main hurdle in getting the film produced was overcoming the 2007–2008 Writers Guild of America strike, as well as possible strikes by the Directors Guild of America and the Screen Actors Guild. Bay met his shooting date with the help of previsualization and a scriptment by his writers Roberto Orci, Alex Kurtzman, and series newcomer Ehren Kruger. Shooting from May to November 2008 predominantly took place in the United States, including the majority of scenes set in outside countries, a minimum of which was conducted in those actual nations.