Best watch order for TRON!

Title: Tron
Original Title: Tron
Journey now into a startling new dimension where energy lives and breathes. A world inside the computer where man has never been. Never before now.
Release Date: 1982-07-09
Director:
Chronology:
Production Company: Lisberger/Kushner Productions
Runtime: 96 minutes
Links: Website - IMdb

Title: TRON: Legacy
Original Title: TRON: Legacy
The game has changed.
Release Date: 2010-12-14
Director:
Chronology:
Production Company: Walt Disney Pictures
Runtime: 125 minutes
Links: Website - IMdb