When it comes to Kostja Ullmann’s filmography, one standout performance that really shines is in A Most Wanted Man (2014), which happens to be his highest-rated movie. Critics and audiences alike have praised the depth he brought to the role, making it a defining moment in Kostja Ullmann’s career. On the other end of the spectrum, back in 2004, Kostja Ullmann appeared in Summer Storm, a film that, while notable for its time, received more mixed reactions and ultimately holds the spot as his lowest-rated project so far. It’s interesting to see how Kostja Ullmann has evolved over the years, with each role adding a new layer to his artistic journey. Still, if you’re looking at ratings alone, Kostja Ullmann clearly hits his peak with A Most Wanted Man.