The Butterfly Effect

The Butterfly Effect (2004) is a sci-fi thriller from New Line Cinema you can watch online on iFILM. Directors J. Mackye Gruber and Eric Bress built their debut around a college student who discovers he can travel back into his own past — not in a machine, but through the childhood journals his therapist told him to keep.

Evan Treborn (Ashton Kutcher) has always had blackouts. Big ones. During those gaps, terrible things happened to the kids around him, and none of them came out whole. Years later, reading a journal entry pulls him bodily back into that moment — and he can act differently this time. Fix one thing. Except fixing one thing moves every other piece on the board. Kayleigh (Amy Smart), the girl whose trauma is woven through most of his missing memories, ends up in a different kind of danger each time he tries to save her. Eric Stoltz, Elden Henson, and a young Logan Lerman round out a cast that leans hard into the film's bleak logic.

Made for $13 million, it quietly earned nearly $97 million and built a loyal following that debated its multiple endings for years. Stream The Butterfly Effect (2004) online on iFILM.