Mr Wheatley said the line could be moved back within six weeks and would be marked by three buoys "to make sure the salt marsh doesn't encroach".

BBC: Salt marsh on Cleethorpes beach to be pushed back 30m

Marsh doesn't have a rating on the company, but he says Imax is an important part of the trend to make movies a special, outside the home experience.

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"Until we have a bad result, we probably won't change anything, " said Marsh.

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He hasn't decided yet whether to fire Marsh.

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It didn't start with the BP blowout, but the oil has made matters worse, killing marsh grasses and other front-line vegetation that helps to hold our precious wetlands in place.

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