Answer:
For #4, All I can say is I remember Harry shared his train compartment with Ron and Hermione.
Explanation:
I hope this helps, been a while since Ive seen the movie but it should be right.
1. To show the old time vibes.
2. Platform 9 3/4
3. The Weasleys, REDHEAD
4. Ron and Hermione
5. Chocolate frogs
6. Collectible cards
7. A companion, a brother like figure, someone he can always lean on
