Which movie has the largest gap between critics and users on Rotten Tomatoes? As in, a small percentage of the audience liked it, but a large percentage of the critics like it; or vice-versa?
With some quick looking, I found Grown Ups has a 52% split: Audience 62% Critics 10%.
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Boondocks Saints has a 70% gap.
Checking some more, I came up with Grandma’s Boy: Audiences 81% Critics 18% Split 63%
As you can see, my research was being outdated as I was conducting it. Hating Breitbart’s 94% is going to be tough to beat.
It’s a 94% difference for those who are curious.
That’s a political documentary, though, with what looks like a lot of five-star audience reviews. I’ll bet that a lot of those raves are for the message, not the film itself.
I’m In Love With A Church Girl…6% of critics liked it, 77% of audience liked it. Ugh, that was a bad movie.
How about movies where the critics rated them much higher than the audience?
Nitpick: a difference of 94 percentage points. 
My first thought was to look up movies that had received notoriously low CinemaScores, and the largest gap I could find was Haywire, with an 80 percent critical score and a 40 percent audience score. But I only looked at about a dozen movies, so there might be a more divisive one out there.