You Can Only Pick 1 Chapter To Be Faithfully Adapted In The Films, Which One Are You Picking?

I had the idea for this post like days ago, but it took a while to post because i honestly just cannot decide, having to only pick 1! When there's so many great chapters that we never got to see in the films like the egg and the eye, the st mungos one, and even the lost prophecy so many amazing chapters throughout the series, but as i can only pick one, i would have to say...kreacher's tale.

That chapter is just really sad, and it breaks my heart that people who only seen the films, will never even know who regulus was at all. I also like it because it kinda redeems kreacher and harry finally understands the worth of S.P.E.W and it has a great payoff at the end with kreacher leading the house elves to battle in the end. Maybe, they cut it because they thought it would be too much exposition and it's not THAT essential to the plot, but idc it still deserves to be there. Anyways, what are some of your picks and why?