If you have any lingering feelings that you might skip The Martian, they're about to be abolished. The movie, based on Andy Weir's bestseller, follows astronaut Mark Watney (Matt Damon) as he gets stranded alone on Mars and essentially has to MacGyver his way home. It might be heavy on the science, but in a fun way — as evidenced by all the viral videos that have been released as part of the ad campaign. Check them out ahead; the latest one features Neil deGrasse Tyson. And if you still haven't, watch the trailer!