Two main characters that earn their title and a story that's both funny and heart wrenching. This movie starts off a little slow but raises the bar with every minute of film and culminates in a both very ordinary but genius final cut scene. I am not a big fan of most German movies, but this gem of a movie is really great material with typical German humor and high-rise apartment building nostalgia.The story has a weak spot or two in terms of the starting premise but the rest of the movie makes up for any of that with ease. Esecially Ulmen is brilliant in his role of portraying what must be tough to bring across on the big screen. He slips into his role of a father stuck in the mental state of a 10 year old excellently and somehow actually seems to grow up towards the end of the movie without making it seem like an unreal development.Lola as Radost perfectly plays her character as a Teenager stuck between 2 worlds: The guardian of her own father not capable of filling that role and on the other hand the youngster during puberty ready to experience life and make some pretty standard teenager mistakes. Needless to say, these worlds are meant to collide and Lola doesn't need a narrator to express that on the screen.In my eyes this is pretty damn good popcorn material and worth a watch if you understand German or find a version with subtitles. Worth every minute I spent watching it. I actually got hooked 5 minutes in. Love it!