Where can I watch Last Flag Flying in United States?

Thirty years after serving together in the Vietnam War, Larry, Sal and Richard reunite for a different type of mission: to bury Doc's son, a young Marine killed in Iraq. Forgoing the burial, the trio take the casket on a bittersweet trip up the coast to New Hampshire – along the way reminiscing and coming to terms with the shared memories of a war that continues to shape their lives.