A Dialogue: A Conversation with Carl Sagan and Ted Turner

本片是一部美国纪录片，上映于1989-11-01，由导演，由特德·特纳/卡尔·萨根主演。

剧情简介：Updates a number of themes from the Cosmos television series. Turner and Sagan discuss issues that are vital to our survival: pollution, the greenhouse effect, and nuclear weapons. Dr. Sagan explains the benefits of our space program and the possibility of time travel.

类型：纪录

地区：美国

演员：特德·特纳 / 卡尔·萨根