Justice League: War (Movie)

Greetings, friends and fans. I have had a question on my mind for quite some time, and I believe you may be the ones to ask! I will start out by expressing that I don't read comics. Just movies, so there's a lot that I'm probably missing. So I apologize for my ignorance!

I'm quite fond of the animated movies. Justice League: War springs to mind! But something kind of bugs me, and that's Green Lantern. He seems to be comedy relief or something. His 'fights' go the same way: Says something cocky, looks like he's winning at first, opponent breaks free, Green Lantern has to shield himself and the opponent breaks that as well. Superman, Darkseid, Doomsday. It seems like Hal is always either overestimating himself or underestimating his enemies, at least that's the way it seems to me

But confidence is fine, as long as you can back it up. Just saying! So I guess my question is, has Hal always been portrayed this way? Like in other media, I mean. Will he get better or stronger? Is there some event that might tune him down a bit, make him more serious? Any answers will be most appreciated, thanks for your time!

Also I will note that I liked the Green Lantern Jon Stewart more. From the animated Justice League series! He was cool, calm and wise. Hal seems the opposite sometimes lol. And sorry, this Post is by no means meant to insult Hal or his fans! I am just curious ^_^