Raphael Satter (December 29, 2013). "Report: NSA intercepts laptop deliveries". Retrieved December 4, 2013 - by way of Twitter. The previous time Stallone sang in a movie was in Grudge Match (2013) when he and Robert De Niro carried out "The Star-Spangled Banner" together. A movie depicting the background of Jack "Galveston Giant" Johnson, the first African-American boxing heavyweight champion, is in improvement.