Sumner Redstone used National Amusements, his family's movie theater chain, to build a vast media empire that included CBS and Viacom, which have merged and separated a number of times over the years.

“The Godfather, Part II” focuses on the difficult choices made by protagonist Michael Corleone, who opts to preserve his family’s ... over from her father, Sumner Redstone.

Tech scion David Ellison has reached a preliminary deal to buy the Redstone family holding company National Amusements Inc., which would give his Skydance Media control over Paramount Global ...