claim: Keegan-Michael Key appeared at the premiere.
evidence: Sir Michael Lawrence `` Mick '' Davis -LRB- born 15 February 1958 -RRB- is a South African / British businessman .. He served as the Chief Executive -LRB- CEO -RRB- of Xstrata plc , an Anglo-Swiss multinational mining company , until its merger with Glencore in 2013 .. Xstrata. Xstrata. Glencore. Glencore. After leaving Xstrata , he formed the mining venture , X2 Resources .. Xstrata. Xstrata