The filmmakers created the Martian landscape in a massive sandpit near Vancouver. It was one of the biggest sets ever constructed for a movie - around two million square feet.
Many of the props from this movie, including the big turning wheel set and the spacecraft model are now on display in the line queue area at the "Mission Space" ride at Epcot in Walt Disney World in Florida.
The original director of the film was Gore Verbinski. When the budget was upgraded, Brian De Palma started to show interest. Rewrites in the script were also done.
Each one of the space suits cost around $100,000 to make. But a real NASA space suit costs between $10-$12 million.
The crew used over 14,000 gallons of paint to spray the soil "Mars red."