Question: Are Robert Wiene and Chris Buck both nationals of the same country ?
Sentence (from "Chris Buck"): Chris Buck (born 1960/1961) is an American film director known for co-directing "Tarzan" (1999), "Surf's Up" (2007) (which was nominated for the 2008 Oscar for Best Animated Feature), and "Frozen" (2013) (which won the Oscar for Best Animated Feature in 2014).
Relevant evidence: Yes