Some celebrities simply cannot be pleased. Just ask Ben Lashes, a talent manager in Los Angeles. This week, he landed a major motion-picture deal for a client who nine months ago was an unknown living in Morristown, Ariz., population 227.

When he told his client that she was heading to Hollywood, she looked bored. "She hates movies," says Mr. Lashes of his client, Grumpy Cat, a cat with a mouth puckered into a frown whose viral photos have ricocheted around the Internet.

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