Actors Imelda Staunton, Jude Law and musician Damon Albarn condemned charges of piracy against 30 Greenpeace activists following an Arctic oil rig protest as "ludicrous" as they joined worried relatives in a vigil outside the Russian Embassy.
The stars along with Paul Simonon of the band The Clash, said the arrests were an international disgrace and a personal blow as they are friends with detainee Frank Hewetson.
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Authorities say Ai Weiwei failed to disclose a previous "criminal conviction" - though his supporters say he was never even charged.
The supermarket made the change after getting feedback from customers who said they felt under pressure as they finished their shop.
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