(Disclaimer: Non-documentary comment)
Last weekend my lady and I got to see a sneak preview of DAN IN REAL LIFE.
I won’t say much, but I strongly recommend it.
If you can get away without seeing the trailer---good.
It seems that with most movies the trailer is better than the movie, in this case the movie is much better than the trailer (and of course most trailers give away 90% of any surprises the movie may have to offer anyway)