- Country: Canada
- Genres: Thriller
- Release: 2018-10-05
- Director: Michael Peterson
- Writers: Kevin Cockle , Michael Peterson , Jordan Scott
- Language: English
- Stars: Michael Ironside , Munro Chambers , Luca Villacis , Kathleen Munroe , Chenier Hundal , Julian Black Antelope , Julian Black Antelope , Krista Bridges , Emily Damberger , Drew Nelson , Michael Peterson
- Runtime: 89 min
- Awards: 1 win & 2 nominations
- AKA: Knuckleball (United States of America) , Knuckleball (Canada) , Knuckleball (Canada) , Наклбол (Russian Federation) , Knuckleball , Sozinho com o Inimigo (Brazil) , Knuckleball (United Kingdom)蝴蝶球 (China)
- Plot: Alone, and targeted on an isolated farm, 12-year-old Henry finds himself at the center of a maelstrom of terror, and a dark family legacy, when his secretive grandfather dies suddenly in the night.
- IMDB:tt6284256
Knuckleball Cast · · · ALL
Michael Peterson
Director
Munro Chambers
Dixon
Michael Ironside
Jacob
Kathleen Munroe
Mary
Krista Bridges
Connie Munroe
Drew Nelson
Deputy
Julian Black Antelope
Lou Chester
Luca Villacis
Henry
Chenier Hundal
Paul