In the movie, Cusack and Amanda Peet race to avoid a series of cataclysmic events but Krupp, the director of Los Angeles' Griffith Observatory, insists the film is all fiction and conspiracy theorists who believe the end of the world is nigh needn't worry about 2012.

He tells WENN, ""Despite the apocalyptic claims and movie posters, 2012 is not the end of the world as we know it.

""There is no scientific evidence to suggest that the world will be destroyed in 2012. The 2012 doomsday idea starts with a misinterpretation of the Maya calendar.""

Krupp has debunked the 2012 doomsday idea in the cover story of the November 2009 issue of Sky & Telescope magazine.

The accomplished astronomer and author is an internationally renowned expert on ancient astronomy, including the Maya, and has visited nearly 1,900 ancient and prehistoric sites throughout the world.

He says, ""If you believe what you hear, the ancient Maya of Mexico and Guatemala kept a calendar that is about to roll up the red carpet of time, swing the solar system into transcendental alignment with the heart of the Milky Way, and turn Earth into a bowling pin for a rogue planet heading down our alley for a strike.""