cinemaception’s review published on Letterboxd:
This film feels like a relic, and I don't mean that just because this was filmed three years ago. I mean it feels like a movie from the late 90s/early 00s. It seems like we get one or two of these each year (last year, it was Playing With Fire) and they usually make it on my worst of list. I have no doubt that this will be on there but I don't have any passionate hate for this. It's a forgettable kid's film filled to the brim with cliches and poorly written dialogue that just so happens to star the actor from Taxi Driver.
Christopher Walken was easily the most entertaining part but that's because of his bizarre demeanor, not a witty script. My biggest issue stems from the stunts that Peter pulls on his grandfather. They are unnecessarily cruel (almost to a Home Alone degree) where the grandfather nearly gets seriously injured or killed and it's all because Peter wants his room back.
At least this isn't Robert De Niro's lowest point in his career. That still goes to Dirty Grandpa.