UPDATE 1-Redstone family says special CBS dividend would be invalid

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May 16 (Reuters) - National Amusements Inc, the movie theater company owned by the Redstone family that controls CBS Corp and Viacom Inc, said in a court filing on Wednesday that a proposed CBS dividend diluting its voting power would be invalid.

CBS said on Monday that a special committee of its board directors was planning to issue a special dividend in the form of stock that would reduce National Amusements' voting control over the company from 80 percent to 17 percent.

In a filing with the Court of Chancery in Delaware, National Amusements said it offered to enter into a standstill with CBS if the latter dropped its plan for the special dividend, but CBS declined. It asked for the CBS request for a temporary restraining order against National Amusements to be denied.

On Monday, National Amusements said it believed CBS sought a temporary restraining order against it because National Amusements had raised specific concerns about incidents of bullying and intimidation by one CBS director, dating back to 2016. On Wednesday, in its court filing, National Amusements identified that CBS board director as Charles Gifford.

CBS and Gifford did not immediately respond to requests for comment. (Reporting by Jessica Toonkel and Greg Roumeliotis in New York Editing by Jeffrey Benkoe)