When Chuck is kissing Sarah in the church there are shots of his left hand on her head and the twist tie is on, then off, then on again in the shots during the kiss.
@ around 21:48, when Awesome supposedly knocks out the CIA Agent and drags him into a side room, the stunt actor pulls one foot back under him BEFORE he's pulled out of sight.
When administering the Suppression Device on Chuck to remove the Intersect, green tinted/hazel eyes are shown, whereas Zachary/Chuck's are a clear, medium brown.