Best watch order for The Butterfly Effect!

Title: The Butterfly Effect
Original Title: The Butterfly Effect
Change one thing. Change everything.
Release Date: 2004-01-17
Director:
Chronology:
Production Company: FilmEngine
Runtime: 113 minutes
Links: Website - IMdb

Title: The Butterfly Effect 2
Original Title: The Butterfly Effect 2
Can you change your past without destroying your future?
Release Date: 2006-08-17
Director:
Chronology:
Production Company: BenderSpink
Runtime: 95 minutes
Links: Website - IMdb