Sophie Gregory and her friends from Wales loved the break-dance celebration, of course.

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Wozniak capped their routine by doing his version of the break-dance move known as "the worm, " but even that failed to save his lackluster performance.

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After a spirited rendition of "Born to Boogie, " the cast, which included Thommie Retter, a solidly built gentleman with a bit of a belly but who nonetheless confounded the laws of physics with his break-dance moves, introduced themselves.

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The break in hip-hop is that point in the song where the lyrics fade out, the instrumental and the percussion takes center stage, and the B-boys, the break-boys or the break- girls would come on to the dance floor and their thing.

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"When the comic high point of your movie features Steve Martin attempting to break dance while clad in hip-hop gear, you know you are in trouble", BBC News Online's Caroline Westbrook said on Monday.

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