I am a huge Tom Hardy fan and I am a huge mafia buff. I love almost all mafia movies, even the ones like John Travolta's recent "Gotti" which had poor reviews. This movie is (somewhat of a spoiler alert so be warned) about a man struggling with health and dementia issues. I kept thinking at some point it would transition to a mafia related story but it never materialized.
Tom Hardy's acting was superb given the role he was playing, however the movie was slow, dark and really never went anywhere. The preview is definitely misleading. I hate to say this, but I would not recommend this movie unless you are interested in seeing Capone's last miserable hallucination filled year. Even if it is based on a true story it did absolutely nothing for me.
I normally wouldn't write a negative review, however I don't want people ordering this movie like I did expecting a certain genre of movie and then getting a completely different type of movie.