Despite familiar themes, the movie is well-made and avoids being overly dramatic. It is well worth watching and takes more after the movie 21 than 'Good Will Hunting' or 'A Beautiful Mind'. A very solid performance by Ella Rumpf (known from the movie "Raw") who portrays Marguerite. Starts a bit slow but if you bite the bullet and continue watching, you will be rewarded. Some plot twists are predictable (just like in the movie "21"), but others you will not see coming. The movie explores a common problem, talented young people who get discouraged when they realize success isn't guaranteed. Marguerite is a brilliant math student who crumbles when her big theorem turns out to be wrong. While the movie explores familiar territory (genius obsessed with proving themselves), it might not resonate with everyone unless you're really into number theory (a specific branch of mathematics). The film uses camera tricks to show how overwhelmed Marguerite feels and how she struggles to decide between her passion for math and the harsh realities of the world. I also loved the movie and the performances of Julien Frison (Lucas) and Sonia Bonny (Noa). But Ella Rumpf (Marguerite Hoffmann) takes the crown. Perfect casting for this role. Rated the movie 9/10 and well deserved. No need to say that this is a must see (despite the slow start).