Shilling for the man (i.e., white studio executives), Russ usually claims that movie criticism doesn't matter. Unfortunately for him, he doesn't know what he's talking about. Here's the evidence:
Why We Need Movie Reviewers
Despite popular belief, critically acclaimed movies actually sell better.
Percentagewise, the critic effect is less pronounced for the supposedly critic-proof blockbusters, but it's still there. On average, the "fresh" blockbusters, such as Harry Potter and I Am Legend outperform the "rotten" blockbusters, such as Wild Hogs and The Bee Movie, by more than $500 per screen. Almost any way you slice it, if a majority of critics like a movie, chances are it will do better at the box office than a similar film the majority of critics don't like. Far from being elitist, movie critics are actually a pretty good barometer of popular taste.
Since I'm only one critic, my opinions obviously don't have much effect. But collectively, the opinions of movie critics do have an effect. For those who understand mathematics, as I do, the effect is measurable.
For more on the subject, see Educating Russ About Criticism and Why Does Rob Keep Criticizing?