Predictable and superficial. Poor acting on all parts, unfortunately not least when it comes to the main character. A polished and fan-adapted version of the main character. The entire movie feels juvenile and does not seize the opportunity to create insights in Z as a person or the influence he had on those around him. Rather it just confirms the general image of a non-conformist, grumpy ego without creating any understanding for the driving forces involved. It fails to bring anything new to the table.
The film seems to be focused on building the Zlatan mythology and brand rather than telling the story of his life in a good way. This is a pity, since Z's history has great potential.
On the positive side.
I guess the football scenes are pretty good and it is said to be quite historically accurate.
There is no real reason to see it. If you are a fan, it likely confirms your opinions. If you're not, it doesn't add much.