Historians view - do they think its accurate?

As I research into the historical event and watch the film for myself I am curious as to what other people have found about the films accuracy. Having read many articles online the general consensus seems to be that the films is largely accurate in the way the ship is physically presented and how it sank but the characters themselves lack historical accuracy. 

There are many articles online that point out the more specific, tiny faults with the movie like the fact when talking to Rose Jack mentions a man made lake that has not been created yet (Lake Wissotta made in 1917). There are many of these small faults which decrease its accuracy but that is more to do with the time period the film is set in and the lack of research about it rather than the actual disaster itself.

The larger, more important faults are to do with characters, many are misrepresented or tweaked for dramatic effect and therefore affect the accuracy of the film. In my essay I will probably focus on this as well as mentioning specific scenes which are accurate or not within the film, this way I can focus on the film as a whole as well as individual scenes in it.