Robert Beksinski’s review published on Letterboxd:
The most incredible aspect about this film and its director is his age. While most aspiring young directors are just hitting film school at age 19-20 or making student produced short films, Xavier Dolan crafted a full length feature film with the quality of an experienced veteran. Not only this, but without yielding to no other creative force than his own. He commanded his film with the auteur sensibility and filled in for all of the major roles of development. Dolan directed, wrote, produced and starred as the lead. Yet still with his lack of experience and tremendous workload, his debut stands as a better film than most with decades in the film industry. If ever there was or should be an inspiring example of promise for a future in the world of film, and given his accomplishments thus far (4 feature films by age 25), it should be Xavier Dolan.
To the film itself, I can easily sum it up by saying I Killed My Mother resembles nothing of an inexperienced debut. Dolan's talent seems a natural trait from birth rather than a learned craft with how easy he mastered the art of cinema, and in such fashion. Acting on the screen, he is incredibly sincere and believable. Not only this, but in the role of director he brings out stunning reactions and scenes from his co-stars as well, including his eponymous mother figure Anne Dorval. From a technical standpoint, there is not much if anything to be seen as flawed. As far as his script is concerned, some could argue it reached peaks of climactic material too early or reoccurring throughout in a high and low valley format, rather than a consistent build in drama and tension. This however did not bother me and actually made for a freshly unique structure for storytelling.
The film contained a tremendous amount of honesty to it and I cannot brush the matter away that this film affected me on a personal level. Perhaps it's like Dolan's character says in the film that everyone hates their mothers, even if it's for a second or for a year or if they just no longer remember, they all once did or still do. It is a highly relatable film and I could not help but to see much of my own self in the character of Hubert and his disconnection with desire unfulfilled towards his mother. Dolan at such a young age possesses endless wisdom to make a film of this caliber and to depict raw honesty in the destructive yet empathetic maternal relationship. He will be a force to reckon with in the world of cinema in years to come.