Only the star performances in My Week with Marilyn, cartoonish as they are, make seeing the film worth the effort.
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What are critics saying?
Arizona Republic by Bill Goodykoontz
Her (Williams) performance is so engaging and complete, it's worth all the other shortcomings.
It's an expertly made, intentionally minor movie, though when Monroe, doping herself with everything available, lies in bed, confused and hapless, there are depressing intimations of the end to come.
ReelViews by James Berardinelli
The unpretentious, easy-to-digest style and short running length (a shade over 90 minutes), when coupled with strong acting (especially on Williams' part), make My Week with Marilyn a pleasant end-of-the-year diversion.
Rolling Stone by Peter Travers
The luminous Michelle Williams goes bone-deep here. Monroe's beauty was one of a kind. No one, not even Williams, can act it. What Williams does, with fierce artistry and feeling, is illuminate Monroe's insights and insecurities about herself at the height of her fame.
Miami Herald by Rene Rodriguez
One of the chief pleasures of My Week with Marilyn - which should not be approached as anything other than fluffy entertainment - is watching Williams bring to life Monroe's inner demons and her movie-star allure with equal aplomb. By the time the film's book-ending closing musical number comes around (That Old Black Magic), the illusion is astounding and complete.
Orlando Sentinel by Roger Moore
Branagh and Williams are worth the price of admission, the former "wunderkind" of British stage and screen having a go at the pretentious, plummy Olivier.
To the extent that Michelle Williams' multilayered interpretation of Marilyn Monroe serves as its raison d'etre, My Week With Marilyn succeeds stunningly.