My favorite all time movie was the original Avengers even more than other critically acclaimed movies simply because of the amount of joy it gave me every time I watched it. In the middle of the viewing of this film I loudly shouted "this is like the Avengers".
What works for this film is that it completes the journey like it said. The beast got tamed, the soldier proved it's worth,the king got to live his life, the widow got a family while the genius billionaire playboy philanthropist died the death he deserved. It provided closure as well as awoke the inner kid in me as I shouted and cried at major moments. I was afraid that captain marvel would make the finishing blow but boy oh boy it was iron man and who else to do the deed.
A movie is said to be made for edification of the mind and entertainment of society. It completed everything in that sense. Hail Hydra!!!