05:42
I haven't seen the film (I'm not much of a film fan) but I have read the novelisation and I thought it was pretty good.
The General Relativity involved in it it pretty straightforward. I'm sure Kip Thorne had a lot of fun working with the film makers, but I doubt he had to work too hard :-)
If you have not watched the film (or read the book) then I'd say watch it as it's good.