Good movie but he doesn't deserve this rating

Rating: 1/10 (20 May 2019)

I give this movie 1 because of course lower this rating and should lower and be under infinity war.
The end is good but the kill of thanos in the beginning is so bad and get another thanos form another time line i think the main villan is just replace to another and many thing like black widow can't back because it in another time line but we see this green female back??
And when they back in time the director don't give as a master peace if they ask Christopher to help them they film will be like a bomb