Raphael Satter (December 29, 2013). "Report: NSA intercepts personal computer deliveries". Retrieved December 4, 2013 - by way of Twitter. The final time Stallone sang in a movie was in Grudge Match (2013) when he and Robert De Niro executed "The Star-Spangled Banner" collectively. A film depicting the record of Jack "Galveston Giant" Johnson, the very first African-American boxing heavyweight champion, is in advancement.