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

July 9, 2025 by Amie Cranswick

RLJE Films has shared a trailer for Descendant, 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.

Descendant arrives in cinemas on August 8th.

 

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

About Amie Cranswick

Amie Cranswick has been part of Flickering Myth’s editorial and management team for over a decade. She has a background in publishing and copyediting and has served as Editor-in-Chief of FlickeringMyth.com since 2023.

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