After watching Green Lantern, what would you have done to make the movie better?

Yeah. I really think that would have made the movie a lot better. It would deffinitly make for an emotinal 2nd film.

Completely taken Parallax out of the film and anything that had to do with the fear spectrum. Would've saved it for a sequel and perhaps mentioned it at the end of the film.

" After watching Green Lantern, what would you have done to make the movie better?

I personally would've ditched Hector Hammond altogether, build more of a teacher/student relationship with Sinestro and Hal, have Abin Sur's fight with Attrocitus, had the majority take place on Oa and in space, and focused more on Hal's father's death and its impact on him. 

"

Completely taken Parallax out of the film and anything that had to do with the fear spectrum. Would've saved it for a sequel and perhaps mentioned it at the end of the film.

@Gambit1024: No... I would've made Blackest Night it's own spin-off because there is no way you can fit that into a 2 hour movie. 1st movie would've focused on Hal and the corps and fought Manhunters maybe idk. Second film would be Sinestro becoming a Yellow lantern and rebelling against the guardians. The third film would be Hal being possessed by Parallax and destroying the GL corps. Also introduce Kyle and John somewhere in-between.

definitely would have explored the Hal Sinestro relationship
 
It's one of the greatest rivalries in DC

@Gambit1024: Sure. I've been having thoughts about it. It would make an excellent animated film because personally I thought First Flight was amazing. But it would work well in movie format as well. As much as people were opposed to it, I thought Reynolds did a really good job as Hal. he played the sarcastic douche at the start of the movie and you didn't like him that much but then he earned his colours. Same thing happened with Thor.

But back to the topic at hand. After establishing the story and characters through the trilogy and perhaps inserting Rebirth somehow. The new spin-off would introduce the emotional spectrum and their main characters and go from there. It would be awesome to throw in Barry in there, Martian Manhunter, and all the Black Lanterns but some things would have to be cut.

If it had been me doing it we wouldn't have seen Earth until the sequel after Hal got the ring, Parallax may have been mentioned but only as an approaching threat the Sinestro would be just as big a part of it as Hal maybe have Sinestro take him on a training mission that gets out of hand maybe have some Man hunters show up but the important thing would be to show how much Sinestro means to the Corps and Hal but at the same time drop hints that he has a dark side and then in the sequel have him turn completely when the corps reprimands him for something then have Parallax actually show up and give him a yellow power ring and end the movie with a fight between Hal and Sinestro which Hal loses but still stops whatever plot Sinestro and Parallax had going on and in the third movie we have the war with the Sinestro corps  

As someone who knows very little about the actual Green Lantern comic, aside from what I learned from Justice League cartoon, and the two animated Lanterns(oh and here on comic vine).
 
I would have made two changes;
1)  Give a better back story to show the relationship between Hal/Carol/Hector, and possibly their parents(seemed like they have been connected).  Possibly give Carol's role to someone older that would have a little more presence.
2)I would have kept Hal on Oa much, much longer.  Do the generic training montage of Hal getting better of weeks or months of practice, not minutes like the movie.  This would give the oppurtunity to have more screen time to Sinestro as well as Killowag and Tomar Re.  Then I would have Hal accompany Sinestro on some type of mission where you really see some of the dark characteristics of Sinestro's.  Hal would try to tell him he is being to harsh, the two would argue and Hal could then quit and take off to earth.  Then the movie could fall in line with the rest of the movie.  Paralax was ok if I could have believed that Hal could pull it off, which I could say maybe if he at least had some training and showed some signs of being great.
 
Focusing more on Oa would allow Hector to not have as much screen time, and in turn make his portrayal a little easier to take.  Then this would set this movie up even better for a sequel featuring the Sinestro War.  Adding the things I listed would not add a horrible amount to the movie because you could cut out half of the Hector Hammond scenes(like his classroom, and some of the stuff between his dad and him.   There are several other scenes that were basically not needed that could have been cut.

I personally would've ditched Hector Hammond altogether,build more of a teacher/student relationship with Sinestro and Hal, have Abin Sur's fight with Attrocitus, had the majority take place on Oa and in space, and focused more on Hal's father's death and its impact on him. 

Completely taken Parallax out of the film and anything that had to do with the fear spectrum. Would've saved it for a sequel and perhaps mentioned it at the end of the film.

 1)  Give a better back story to show the relationship between Hal/Carol/Hector,....give Carol's role to someone older that would have a little more presence. 2)I would have kept Hal on Oa much, much longer. .......There are several other scenes that were basically not needed that could have been cut.

If filming a trilogy, I would actually save the training sessions on Oa for the sequel.  The first film should show Abin Sur's death by Atrocitus' hand, and have Atrocitus hint to Hal why the ring failed him.  The audience learns about the GLC and the ring as Jordan does:  the hard way!  After dealing /w Hal's origins, and the mutual history he has /w Carol Ferris, it turns into a CHASE, where Hal does his best to track down, and capture, Atrocitus, without getting killed in the process.  Its a long, drawn-out chase, /w several rough confrontations where Hal learns what the ring can do.  His overwhelming willpower (his father's fear is what killed him, and Hal developed it as a natural response to what killed the elder Jordan in a test flight) comes naturally, and he more-or-less gets by on luck and instinct.  That's how he learns about the ring's constructs.  The movie ends with Sinestro dropping out of the sky to save the day, and telling Hal its time to meet the REST of the GLC.  In Part 2, we get to meet the principle GLC, and the Guardians.  Hal goes through boot camp, and everybody (especially a jealous Sinestro) notice how naturally Hal wields the ring.  But, just as Hal is about to head back home (its implied he's been gone a few months), a very strange signal is received, and the Guardians send Hal, Sinestro, and Tomar-Re to investigate.  Its turns out to be the Manhunters, the Guardians FIRST attempt at policing the galaxy (Not the universe, which leaves room for lots of Easter eggs, like Darkseid, Mongul, Brainiac name-dropping).  But, the Manhunters' biggest advantage is the GLC's biggest limitation:  a GL cannot kill, and the Manhunters' sentience makes them bound to that law, but their emotionless programming (much like the Guardians, who made them "in their own image") means they CAN! This leads to massive death-tolls on both sides.  A virus sent through the Manhunters' communication networks allows the Corp. to win, but just barely.  A climactic battle on Korugar results in victory, but reveals Sinestro's despotic rule of his planet.  Hal's damning report to the Guardians gets Sinestro booted out of the Corp., and sentenced to slavery on Qward, to mine materials for Qward's famous Weaponsmiths.  Hal becomes a member of the Honor Guard, simultaneously earning Hal Sinestro's grudging respect, and his everlasting hatred.  In part 3, Sinestro collaborates /w the Qwardians, teaching them the secrets of the GL power ring construction and programming.  They help him forge the first yellow power ring, and Sinestro, along /w other indentured miners (Arkillo, etc.) decide to rebel against the Qwardians, who supply weapons to the biggest despot in the galaxy: Darkseid!  (Its just an Easter Egg, though).  They decide to embody the GLC's greatest enemy: FEAR!  It hits all the high-notes, captures Hal and Sinestro's relationship, and tells most of Geoff Johns' story from the Sinestro Corp. War.
 On a side-note, casting:
Hal Jordan:: Bradley Cooper  (admit it, we knew it should've been Cooper from the get-go, but GL really didn't get off the ground until AFTER The Hangover was released, and by then he was already committed to The A-Team.
Carol Ferris:  Marion Cotilliard (she has the look, and the acting chops, to pull off Carol's very conflicted feelings about Jordan.
Thaal Sinestro:  Tie b/w Mark Strong, and Michael Fassbender..  Strong personifies Sinestro's overwhelming sense of power, menace, and his absolute belief in his of rule through strength, whereas Fassbender's Magneto is exactly what Erik Lensherr would be like if here a purple alien.  Everyone's made the Magneto/Sinestro comparison, so why not just hire Fassbender to play them both?!