If there ever was a film that captured a character’s childhood (adolescent or life in general) so profoundly, it was Les quatre cents coups (The 400 Blows) by François Truffaut. A defining film of the French New Wave; it follows Antoine Doinel played by Jean-Pierre Léaud, here a brilliant fifteen year old debutant, who would later become one of the most recognized face of this film movement.
Set masterfully in the backdrop of Paris, the city here itself reflects the mood of the character and breaks from its conventional postcard image.
Much can be said (and has been) about the direction, the acting, the plot and the meaning of it all, but one should just dive into this nostalgic journey with Antoine in the streets of Paris to know what a masterpiece of cinema this is and what a powerful medium film can be.
PS - If anyone is familiar with the artist of any of these amazing posters above, please message me, I will mention them in the post.