Judi has since told how it’s caused a few problems on set, most notably recognising her colleagues and learning her lines.
During the pandemic, Judi headed back to work to film new release Belfast, a black and white coming of age movie set in 1960s Northern Ireland.
At the European premiere for the film, which took place during the London Film Festival earlier this month, Judi went into more detail about the problems the condition causes her at work.
“I kept going up to the wrong person, having a conversation, and they’d say: ‘I’m not who you think I am,'” she told the Daily Mail.
The Best Exotic Marigold Hotel airs tonight at 10.40pm on BBC One.

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