Did a little search on youtube and found a documentary with English narration about the first months after the war in the rubble of Berlin.
Consist entirely of remastered and colorized original film material and is quite good and held in a neutral tone (a concerning amount of the other stuff I found was more or less obvious recent right wing propaganda…), so you might want to have a look:
www.youtube.com/watch?v=GKJ_PPg9aVE&t=585s