No it's not. All the reviews of What Maisie Knew have been unanimously positive so far.

Hollywood Reporter: "Tasteful melodrama benefits from uniformly strong performances"

Variety: "Henry James' 1897 novel about a child caught between two horribly unfit parents has been effortlessly updated to the present day. Anchored by five strong performances, … this beautifully observed drama essentially strikes the same sad note for 98 minutes, though with enough sensitivity and emotional variation to make the experience cumulatively heartrending rather than merely aggravating."

New York Post: "Henry James' novel about an innocent child buffeted by divorce gets a smart 21st-century update in this well-acted drama… "What Maisie Knew'' is affecting and alarming and makes great use of its New York locations. "

EW: "Quietly down-to-earth, McGehee and Siegel capture the sadly lovely mood of the film"

Globe and Mail: "Great acting makes the (perhaps intentionally) humdrum script sing. And for those who have read the book, this contemporary adaptation of a once avant-garde story feels exactly right."

The Guardian: 4/5 stars