They’re not the same thing. Film reviews are served up by daily critics, who no matter how knowledgeable they are, are writing for a day-by-day audience, who want a plot outline, a brief overview, and then some opinion on the film at hand, advising readers whether to see the film or not.
Film criticism and theory, in contrast, “unpacks” a film to see what makes it tick, and uses various theoretical approaches, such as feminist film theory, or auteurism, or structural film theory, or numerous other approaches — far too many to list here — to take the film apart in detail, and see how it works.
Film reviews are mainly an opinion pieces, but film criticism proceeds from a large base of historical, critical and theoretical information, and offers a detailed understanding of the director’s history, past projects, the history and practice of the genre in question (if it’s a genre film), of others working in the field, possible precedents for the film, shot structure, editing, choreography, lighting, acting styles, camera movement, framing, deep focus, costumes, and whatever else might apply; it deconstructs the film in detail.
So there’s a world of difference here, and it seems to me that sometimes people get the distinction blurred; anyone can have an opinion, and give you a thumbnail review of a film, or a book, or anything else; but it’s just their point of view.
In order to really understand a work of art (or even a commercial film, or perhaps I should say, especially a commercial film – they really need careful discussion), you need to really examine it, in an absolutely detailed fashion, and have the background in history, theory and criticism to really understand what’s going on. That’s the beginning of film criticism, and the beginning of a real understanding of the film (digital or otherwise) medium.