‘Sly’ review: Just a man and his will to survive. Sylvester Stallone gets the Netflix doc treatment

Famous for his sad-eyed brawn, Sylvester Stallone doesn’t get much credit for his intelligence or perceptive instincts. A storyteller to his core, he understood from the start that his biggest roles, Rocky and Rambo, were more than just men built to fight, and he helped to redefine what an action movie could be along the way.

But once you attain your dream, he says in the Netflix film “Sly,” it’s not all it’s cracked up to be. “I thought once I made it to the top of the mountain, it was all blue skies,”