Ashton Kutcher and William Lee Scott in The Butterfly Effect (2004)

Logan Lerman in The Butterfly Effect (2004)

Ashton Kutcher in The Butterfly Effect (2004)

Ashton Kutcher and Amy Smart in The Butterfly Effect (2004)

Melora Walters and Logan Lerman in The Butterfly Effect (2004)

Ashton Kutcher and Ethan Suplee in The Butterfly Effect (2004)

Melora Walters and Ashton Kutcher in The Butterfly Effect (2004)

Ashton Kutcher and Elden Henson in The Butterfly Effect (2004)

Eric Stoltz in The Butterfly Effect (2004)

William Lee Scott in The Butterfly Effect (2004)

Irene Gorovaia (left) and John Patrick Amedori (right) star as the young "Kayleigh" and "Evan".

Matthew F. Leonetti, Eric Bress, and J. Mackye Gruber in The Butterfly Effect (2004)

Co-writer/directors Eric Bress (left) and J. Mackye Gruber review a shot on the set.

Logan Lerman and Sarah Widdows in The Butterfly Effect (2004)