Poster of Free Solo. [Photo provided to China Daily]

Free Solo, the jaw-dropping documentary which scooped an Oscar earlier this year, will hit domestic theaters on Sept 6.

The film will be promoted by Alibaba Pictures, the film arm of Alibaba Group Holding Ltd, and Taopiaopiao, the group's online ticketing service.

The movie, which won best documentary at 91st Academy Awards, follows professional rock climber Alex Honnold's efforts to conquer El Capitan's 900-meter vertical rock face at Yosemite National Park in California.