Robert Beksinski’s review published on Letterboxd:
One has to appreciate a good thriller that knows how to be patient and flesh out the set up in order to string the audience along the entire time. It's almost akin to a successful heist where the filmmakers have kidnapped the audience's intrigued. Which going with that metaphor it is one thing when they have obtained your intrigue but it is totally different on what to do with it now and how to keep hold of it. Tell No One for the majority of the time seems to know what to do.
While I say majority, the one aspect that is holding me back is a popular complaint regarding this film that its ending is much too convenient compared to the difficulty in unraveling the mystery that came before it. I do agree with the masses in this flaw but it still does not prevent me from enjoying the thrill that preceded the climax taking up 90% of the runtime. And even on discussing the ending, I would personally just say its a weak ending for a strong film but certainly not a terribly unbelievable one.
Tell No One pretty much has everything else working in its favor with solid acting especially from François Cluzet who handles the weight of his lead performance with a tour de force intensity. I also greatly admired how smooth and subtle director Guillaume Canet displayed the progression in the story and the development in the characters which in itself greatly helped connect and embroil the viewer deeply into the mystery. This film also had a hell of a crazy soundtrack, extremely diverse music from U2 to Otis Redding but it honestly worked well with the film. I think it even helped keep the viewer off their guard in how to take the film or a specific moment within it.
I enjoyed this French thriller in its emotionally driven destination. It was a refreshing change mainly in how Canet crafted the film and not as much in how original the plot was. Sometimes that is all that it takes to rebound a genre is a fresh set of hands at the helm.