A new documentary film about Sarah Palin, filmed in great secrecy by a conservative filmmaker, will premiere in June and looks like the start of a future presidential campaign by the former Republican Alaska governor and vice presidential candidate 2008.

The film’s existence is revealed by Scott Conroy at RealClearPolitics, a leading political news site, whose report tonight describes at length the content of the two-hour film, “The Undefeated”.

The film will likely premiere in Iowa where the first primary election battle takes place in January next year. The film will then be shown in New Hampshire, South Carolina and Nevada, all primary states.

“This film is a call to action for a campaign like 1976: Reagan vs. the establishment,” said filmmaker Stephen K. Bannon to RealClearPolitics. “Let’s have a good old-fashioned brouhaha.”

The film portrays Palin as “the only conservative leader who can both build on the legacy of the Reagan Revolution and bring the ideals of the tea party movement to the Oval Office.”

If the film means the start of a Palin presidential election campaign, it would mean a drastically new situation for the Republican party, which is right now dominated by confusion and lack of enthusiasm for any of the present candidates after four possible candidates decided not to run.

And for those who are still thinking about running, like former Utah Governor Jon Huntsman and Congresswoman Michele Bachmann, a Palin candidacy might make them decide not to run. For although Palin is controversial and polarizing, even within her own party, she is by far the best known of all the Republican candidates, with strong support from the Tea Party movement, and she would likely be very had to beat.