Scarlett knew the significance of it but it was never revealed in the end.
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I believe it was filmed Ramsgate, where the beach goes out shallow, he would have to have jumped a long way from the cliff top to reach deep water. And if the water was that deep at the bottom of the cliff there would be no beach to come out to. It was meant to be Dover where the cliffs are higher and the water deeper when the tide is in. The fall would probably have killed him the way he entered the water.
poor shirl left all alone
I wish Alfie had gone into the sea missing.
keanu looking for phil, idiot get their plan outed already