Really? Physicists are praising the movie's accuracy left and right.
Well, I've been out of the Physics loop for a few years now but from what I recall of blackhole cosmology, the things that really seemed scientifically inaccurate were:
*POTENTIAL SPOILERS*
1.) The time-dilation on that planet w/ the tsunami-like waves where 1 hour equals 7 solar years - for such an incredible dilation of time, the gravitational force would have to be so high that they would be much closer to the event horizon of the blackhole. This in turn would have catastrophic effects on the planet, rendering it uninhabitable. The crew would have become subatomic pancakes before they entered the atmosphere of the planet. And, no liquid water would exist with such gravitational force.
2.) The part where he 'drops off' to go into the black hole is made to look so close that there is no rocket, even in imaginary terms, capable of surviving such a thing. The tidal friction, caused by the immense gravity of the blackhole, will cause everything, let alone the spaceship, to become subatomic particles as it approaches the event horizon. The fundamental theorem behind GR is that as velocity approaches the speed of light (c), time slows down (and mass increases). So, to the person outside of the even horizon, the guy would appear to be at the edge FOREVER (even after he has fallen in and gone beyond the point of no return). T = 0 at the event horizon for someone observing from 'outside.' Time comes to a standstill at the event horizon - that is where the science as we know breaks down. They missed that completely.
3.) If I remember correctly, they never showed how he exits the event horizon and gets back to the wormhole(?). Although that scene inside the even horizon - near or at the singularity - was really creative, they seemed to have made a lot of leaps of faith, if you will, with the actual science behind it. The whole point of the blackhole is that space-time bends onto itself - no matter what direction one goes (even if that one is 'light'), one will never be able to exit the event horizon - as determined by the star's Schwarzchild radius.
4.) The shape of the black hole's accretion disk - this could be some new development - but due to the law of conservation of angular momentum, the accretion disk is generally flat. The shape they had it where there was another ring that was perpendicular to the 'main' accretion disk just seemed off. In an active black hole (rotating), the black hole pushes out matter along the plane of the accretion disk, not perpendicular to it - except for immensely large gamma ray jets that are sometimes light years in length. The mass then falls on to the accretion disk and gets ejected - what we see as 'quasars.' They never showed any jets of energy near the active black hole which seemed odd.
5.) The other thing is that the matter that is sucked into a black hole, as it approaches the event horizon, is so high energy that it becomes gamma rays - the most powerful form of any electromagnetic wave (EM) - this is way beyond the visible spectrum so the spaceship being that close to the black hole means that they would not be able to SEE anything! Since the light source (energy) is emitted in the form of gamma rays and then 'cools' down and stretches and finally falls into the visible spectrum, we, on earth, are able to observe the light as visible material around the black hole. But being so close to the black hole, they would not have 'seen' anything there.
I heard they consulted Kip Thorne @ Caltech for this project. Either I'm way off base with what I saw, or Kip has gone off the deep end. I would wager it's me since I didn't get millions to advise Chris Nolan on this movie.