I have watched the movie with my kids and we all sat there still while watching it. It is a good movie.
Your father seemed to be a wonderful person and had his heart in the right place by always wanting to help. I can picture the scene of you both building and flying that kite. That is something to hold on to for sure.
I am glad that your sister encouraged you to keep writing. It is very meaningful.
Be strong my friend, our dear loved ones are always with us :)