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LONDON -- Bob the Cat has truly reached the pinnacle of stardom.

Thursday night,Watch Taboo Family Online he attended the UK premiere of his film A Street Cat Named Bob(as the title would suggest, he is indeed a starring character).

And before the screening, he had a casual audience with HRH The Duchess of Cambridge, Kate.

But for Bob the Cat, it clearly ain't no thang:

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Kate attended the charity event in her official role as patron of Action On Addiction, a charity that helps those struggling with drug and alcohol abuse as well as their loved ones.

The British family comedy-drama is based on the memoir of the same title by James Bowen, formerly a homeless busker and recovering addict who credits Bob the Cat with helping him to turn his life around.

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Bob appears completely unfazed by the presence of royalty -- clearly secure in his own celebrity status.

BONUS: Princess Charlotte and Prince George play with balloons

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