Robert Redford walked away from this year's Cannes Film Festival with some of the best notices of his career -- not for his directing, but for his acting in "All is Lost," the sophomore effort from Oscar-nominated "Margin Call" writer-director J.C. Chandor. The film played out of competition, so Redford never had a hope of snagging an award for his efforts, but come this Fall, don't be surprised if he collects some nominations (and potential wins) for his brave turn. 

The film opens October 18h and Lionsgate & Roadside Attractions have dropped the film's first, riveting trailer.

READ MORE: Robert Redford's Strangest Role of His Career Is In J.C. Chandor's 'All Is Lost'

In the almost wordless film, Redford plays a man stranded at sea alone, fighting for survival on a sinking sailboat. Watch the trailer below.