Oscar nominee Lion is headed past the $100M mark globally this week, as well as crossing the $50M international box office threshold. Through Tuesday, the global reach is $84M and offshore is at $46M with big markets to come. The Weinstein Company movie, which is nominated for six Oscars, is coming off BAFTA wins for a jubilant Dev Patel in Supporting Actor and for Luke Davies' adapted screenplay. The UK, Italy and Australia have already released with such key markets as…