GTA IV' launch could top 'Halo 3

The run-up to “Grand Theft Auto IV” has been considerably less ballyhooed than last year’s over-the-top “Halo 3” debut. Yet when “GTA IV” parks on store shelves on April 29, it could be the most lucrative launch in entertainment history — and one that many people may not even know about.
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Grand Theft Auto IV Trailer 1 Things Will Be Different

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