RovioEntertainment,theFinnishmakerof"AngryBirds"andotherpopularmobilegames,saysitplansaninitialpublicofferingandalistingofitssharesontheHelsinkistockexchange.Ch
An omnipresent, nine-month marketing campaign propelled “The Angry Birds Movie” to No. 1 at the North American box office over the weekend, giving Sony Pictures an important feather for its frayed cap.
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