Ashton Kutcher and Amy Smart in El efecto mariposa (2004)

Melora Walters and Logan Lerman in El efecto mariposa (2004)

Ashton Kutcher and Ethan Suplee in El efecto mariposa (2004)

Melora Walters and Ashton Kutcher in El efecto mariposa (2004)

Ashton Kutcher and Elden Henson in El efecto mariposa (2004)

William Lee Scott in El efecto mariposa (2004)

Ashton Kutcher in El efecto mariposa (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 El efecto mariposa (2004)

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

Amy Smart at an event for El efecto mariposa (2004)

Billy Wirth at an event for El efecto mariposa (2004)

Ashton Kutcher and William Lee Scott in El efecto mariposa (2004)

Logan Lerman in El efecto mariposa (2004)

Logan Lerman and Sarah Widdows in El efecto mariposa (2004)