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Trailer for sci-fi thriller Descendent starring Ross Marquand and Sarah Bolger

July 9, 2025 by Amie Cranswick

RLJE Films has shared a trailer for Descendent, the upcoming sci-fi thriller from writer-director Peter Cilella.

Ross Marquand stars as Sean, a school security guard troubled by childhood trauma who becomes obsessed with extra-terrestrials and the unexplained lights he witnessed, as his wife (Sarah Bolger) prepares for the birth of their first child.  Check out the trailer below…

Set in present-day Los Angeles, Sean Bruner, a school security guard who is haunted by childhood trauma while preparing for the birth of his first child with his wife, Andrea. After a beam of light appears in the sky during a late-night shift, Sean wakes up in the hospital with an inexplicable talent for vivid, unsettling drawings of extraterrestrials and desert landscapes.

Descendent arrives in cinemas on August 8th.

 

Originally published July 9, 2025. Updated August 4, 2025.

Filed Under: Amie Cranswick, Movies, News, Trailers Tagged With: Descendent, Peter Cilella, Ross Marquand, Sarah Bolger

About Amie Cranswick

Amie Cranswick is Executive Editor of Flickering Myth, responsible for overseeing editorial coverage across film, television and pop culture.

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