The film is a grassroots-type documentary by mother Vicki Abeles who decided to make the film after her children began having problems at school.

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Mr Clegg was very much a Brussels type: nifty on skis, suavely multilingual with a Dutch mother, a Spanish wife and a degree from the College of Europe, an elite nursery for Eurocrats.

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"We have quite simply been overwhelmed by messages of support and condolences of every type, from far and wide, and I know my mother would be pleased that they have come from all walks of life, " he told reporters.

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But Mother's Day can be uncomfortable for some because it brings up a different type of dialogue between mothers and their children.

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As the first-born child (and an undeniable Type Double-A personality), I started taking over big things for my mother when my father was still in the nursing home.

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Tamerlan "swaggered" through the family home like a "man-of-the-house type, " one visitor recalls, while Dzhokhar seemed "very respectful and very obedient" to his mother.

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