I know he mentioned they need work and I am all for suspension of disbelief for the sake of visual appeal, but rocket engines and missiles should be restricted to a short exhaust area and never long trails. The beam weapons and explosions have to provide 90% of the fire works if the battle scenes are going to be anywhere near believable.
I know I will not get my way on this, but I hope the final product is nothing like what we saw today.
