As Danny is in his pajamas lying on his bed (at around 32 mins) he has no abrasion over his left eyebrow, but when a gunshot awakens him (at 14:02 and throughout the rest of that scene) he does have abrasions over his left eyebrow. Similarly, when Danny and Wayne hide behind a tree as the Sweeney brothers ride by on their bikes, Danny has no abrasions (at around 7 mins), but after being chased by Andy Sweeney and falling, Danny does have the abrasions over his left eyebrow (at around 29 mins), but we know they are from his fall.
Boy stands on an overturned garbage can outside John Chuck's window, then suddenly turns to leave (he'd have to step down).
When Ruth turns on the radio in her bedroom (at around 23 mins) it begins to play immediately, not taking time to warm up like a tube radio from that period would. Either the radio is solid state or, more likely, this reveals the music being added in after the scene.