In addition to winning awards, Sisters & Brothers undoubtedly got good reviews. Sometimes awards are mis-given and good reviews are mis-placed. That certainly is the case here. Except for including the F-word multiple times in each sentence, there is nothing insightful or illuminating in any of the dialogue and the people fundamentally are all less than 2-dimensional. But capping off what tries to be an in-depth serious looks at siblings, the ending would have doomed the movie even if it had been worth sitting through.
IMDb Link: http://www.imdb.com/title/tt1816642/?ref_=ttawd_awd_tt