Actor Andy Serkis, known for his role as Gollum in the Lord of the Rings series, plays Caesar the ape in Dawn of the Planet of the Apes.
Alex J. Berliner/20th Century Fox

A Primate Example

Brush up your British slang with Andy Serkis (Dawn of the Planet of the Apes, The Lord of the Rings), who talks getting into the mind of Caesar the ape and reveals the origin of Gollum's creepy voice.