Ashton Kutcher and Elden Henson in L'effet papillon (2004)

Melora Walters in L'effet papillon (2004)

Ashton Kutcher and Ethan Suplee in L'effet papillon (2004)

William Lee Scott and Amy Smart in L'effet papillon (2004)

Ashton Kutcher in L'effet papillon (2004)

Kevin G. Schmidt and Irina Gorovaia in L'effet papillon (2004)

Irina Gorovaia in L'effet papillon (2004)

Melora Walters, Logan Lerman, and Sarah Widdows in L'effet papillon (2004)

Logan Lerman and Sarah Widdows in L'effet papillon (2004)

Kevin G. Schmidt in L'effet papillon (2004)

Ashton Kutcher and William Lee Scott in L'effet papillon (2004)

Ashton Kutcher and Amy Smart in L'effet papillon (2004)

Melora Walters and Logan Lerman in L'effet papillon (2004)

Melora Walters and Ashton Kutcher in L'effet papillon (2004)

William Lee Scott in L'effet papillon (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 L'effet papillon (2004)

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