Mistakes
When Sinestro is talking to the Guardians for the first time in the movie, the last shot of him shows his scar on the wrong side of his face. See more...
Trivia
In the scene where Hal Jordan meets Sinestro for the first time and they start to fight, the shield that Sinestro conjures up is identical to Captain America's shield - it even makes the same noise when a bullet hits it. See more...
Movie Mistakes blog
Popular blog posts:
Top 15 biggest Harry Potter film mistakes
The 10 biggest mistakes in Iron Man 1 & 2
15 biggest mistakes in Titanic
Other great sites
Green Lantern (2011)
Directed by Martin Campbell, starring Blake Lively, Mark Strong, Peter Sarsgaard, Ryan Reynolds (add more)
Green Lantern trailers
If any trailers aren't working, please contact me with details of what's wrong.