Where can I watch Project Hail Mary for free?

You can watch Project Hail Mary for free on the Castle app. It streams in HD with Hindi and regional language options.

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Is Project Hail Mary available in Hindi?

Yes. Project Hail Mary is available with Hindi dubbing and subtitles, along with other regional language options on Castle.

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Project Hail Mary — Full HD Film, No Subscription | Castle

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Project Hail Mary - Free movie on Castle

Watch Project Hail Mary (2026) Hindi Dubbed Movie Online

2026United States156 min8.4

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★

Science fiction Thriller

Science teacher Ryland Grace wakes up alone on a spaceship light-years from Earth. As his memory returns, he uncovers a mission to stop a mysterious substance killing the sun, and save Earth. An unexpected friendship may be the key.

8.4/ — votes