First of all I won't spoil anything. "Jonas" is an incredible movie, with a story so thoroughly develop you won't want to miss it. The story develops on two timelines in a really clever way and the mystery is revealed in such a thought-out manner that honestly you'll stay glued to the screen. It's been a long while since I saw a movie developing and revealing the plot so well.
As for the actors, their acting is wonderful. The younger actors as well play incredibly well. Nothing feels fake or rushed or inauthentic.
It's really a movie you shouldn't miss!