In the final scene when driving along the Korean highway, the gray dash mat seems to have disappeared, and it looks like there are driving/fog lights below the bumper.
"She talks about picking someone up at 5pm and dropping them off 2 hours later at 7am, but it should be 5am to 7am."
Misaki explains that it was an hours' drive to the train station to drop off and pick up her mother for her night shift of work. She left the house at 5 pm and picked her mother back up at 7 am, meaning after her shift. She says her mother wanted to sleep during those 2 hours, referring to the two hours of driving, one hour each way, as opposed to "2 hours later."
Misaki explains that it was an hours' drive to the train station to drop off and pick up her mother for her night shift of work. She left the house at 5 pm and picked her mother back up at 7 am, meaning after her shift. She says her mother wanted to sleep during those 2 hours, referring to the two hours of driving, one hour each way, as opposed to "2 hours later."
When the cast are walking to the park for their outdoor rehearsal, Yoon-a and Janice appear to be having a conversation without the use of sign language on which one of them is dependent.