"A dog's eye sight is very different to ours, but much of the problem is that dogs get caught up in the moment, " she said.

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The point is that Allen practically uses Soon-Yi as a seeing eye dog to guide him through the treacherous maze of real people who don't live within the carefully circumscribed confines of Woody World.

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The film is said to involve a new boy, a "snow dog" and such modern landmarks as the London Eye.

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