Don't rely on Hollywood as your ultimate reference.  They have been known to get it wrong many times.  The subtle striping is the Herringbone twill pattern.  The camouflage uniforms were developed and issued during the war, but were sporatically worn in combat.  

Here is 1 link of many that can be found through Google:

http://olive-drab.com/od_soldiers_clothing_combat_ww2_usmc.php