Sylvester Stallone Begins Filming 'This Is Us' - See the Photos!

Sylvester Stallone has officially begun filming his guest starring stint on This Is Us! The 71-year-old actor took to Instagram on Saturday (August 12) to share tons of photos of himself with the cast of the hit NBC drama. “My good buddy Milo Ventimiglia who nice enough to invite me to be on the show