This from the uk film council - UK Film Council - Filming in public spaces

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Advice about permission and Rights clearances

If you film an actor inside a store or restaurant – you need written permission to use the location and also to show the chain's name or trademark.

If you film outside a store or restaurant you do not need permission to show its name or trademark – however, if the location chosen is used to communicate a negative message in your film (for example, a film about 'poisoned restaurant food') you may risk legal proceedings.

You do not need to ask passers-by for permission to feature their faces in a film. Under UK law, the copyright of film shot in a public place resides with the filmmaker.

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Job done.