If the film is not currently streaming for free on your active subscriptions, you can rent or buy a digital copy for a nominal fee. Digital rentals typically give you 30 days to start watching and 48 hours to finish once initiated.
Because The Martian was produced by 20th Century Fox (now owned by Disney), it is permanently available to stream for subscribers on Disney+ and Disney+ Hotstar in various international markets. filmywap the martian