Hal Jordan or bust.
There's a good film in that first GL movie but it's bogged down in pointless chuffer (the family birthday scene, Pie Face at Hal's appartment ("I know, right?!"), Pie Face and Carol at Hal's appartment after his fight with Hector).
You could edit pretty much all that out with some minor reworkings and have a more streamlined action packed movie.
I bet there's a terrific fan edit out there