An author is planning to release a book which argues against the explanation of the assassination of the Black September leaders following the 1972 Munich attack given in Steven Spielberg's Munich is flawed.

Written by Time magazine's Israel correspondent Aaron Klein and published by Random House, Striking Back aims to reduce credibility of the explanation of events in George Jonas' book Vengeance, the account of the events which the filmmakers used as source material.

A primary disagreement between the two books is the motives behind the assassinations of the Black September leaders was an emotional reaction to the Palestinian killings, as Vengeance and therefore Munich would have us believe, or a strategic move to cripple a terrorist network.

Striking Back has been on the cards at Random House for a number of years and was planned to be released next year, although its publication has been brought forward to next week, just days before Munich hits screens in the US. The move is in a bid to use the controversy to the ends of the campaign for the book, Variety reports. Vengeance is also being re-released by Simon & Schuster to coincide with the movie.

Striking Back editor Will Murphy stated that filmmakers "can say whatever they like, but it doesn't change the fact that both the PLO and the Mossad think Vengeance is bulls**t."