Paul McCartney has hailed Peter Jackson’s upcoming documentary Get Back for providing confirmation in his own mind that he wasn’t responsible for The Beatles‘ split.The new film from the Lord Of The Rings director captures the making of the band’s final album, 1970’s ‘Let It Be’, which is set to challenge the popular narrative that the group constantly clashed during their later years.McCartney has previously been accused of orchestrating their split, after he announced his departure from the