At stake is some $ 4 billion , the value of a roughly 50 percent interest in Sumner Redstone 's National Amusements , the movie theater company that in turn owns controlling shares in Viacom , CBS and Midway Games .
Sumner Redstone
Viacom
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Sumner Redstone
Viacom
/business/company_shareholder/major_shareholder_of
Sumner Redstone
CBS
/business/person/company
Viacom
Sumner Redstone
/business/company/major_shareholders
PERSON
Sumner Redstone
ORGANIZATION
National Amusements
ORGANIZATION
Viacom
ORGANIZATION
CBS