Film studio Pinewood Shepperton today claimed to have the support of the majority of its shareholders for its strategy despite a call from 18% shareholder Crystal Amber for chairman Sir Michael Grade to stand down. Crystal Amber, which has also called for Adrian Burn, the studio's senior independent director to go, wants the film studio to push ahead with developing its spare property."Board renewal is now essential to improve the performance of the group, which has seen profits and return on capital fall by more than half in the six years since the business was floated in May 2004," it said yesterday.In response, Pinewood said, "We are well aware of Crystal Amber's viewpoint having met with them on a number of occasions. Our latest discussions with our other major shareholders, representing a clear majority, give us confidence that they support the board, its stewardship and strategy". Peel Group, the studio's largest shareholder with a 26.6% stake, recently put its own man, Steven Underwood, on the board.In a short update on trading, Pinewood added that overall revenues for 2010 remain in line with market expectations with the vast majority of film stage revenues for the second half of the year already contracted. Its AGM is today.