I went to see Yesterday, well, yesterday (barely) and loved it. I am, of course, a sucker for romantic comedies. That’s what Yesterday is, at heart.
I don’t want to give anything away, so I will only spoil the part you may have wondered about the nature of and therefore aspects of the resolution of the story. The trailer made me think “and then he woke up from his coma and knew to tell Ellie he loved her.” Too trite, I thought, which makes it science fiction. It’s not too trite. This helps add some fascinating, amusing, and even tear-provoking details, and even a bit of suspense. Not that there’s no dream sequences at all, but that’s not what makes the plot possible.
It made me want to listen to the Beatles. More than normal.
Finally, it’s not giving anything away to surmise that the name Ellie was inspired by Eleanor Rigby, and to note that I was surprised it was well after the movie before I realized it.