I was really excited to see Free Fire. The premise of a contained shoot 'em up within a single location reminded me of the classic film Reservoir Dogs (which I consider to be a Fresnerd A). Plus, with Martin Scorsese as executive producer, this film had a lot of potential.
Unfortunately, I found Free Fire to be a bit disappointing. My biggest issues were its tone and camera work. It felt to me that the movie didn't really know what kind of movie it wanted to be since the balance between serious/tense action and comedy was a bit off. I'd say half of the jokes landed well with the audience; and the action while entertaining enough, at times dragged. With regard to the visual technique, the camera seemed to either linger so long that I found it distracting or shift so quickly that I found myself lost in the commotion.
In addition, while the violence could be fun on its own, I found it ended up coming across as somewhat excessive because the trigger for it all seemed a bit far fetched and forced.
All that being said, I didn't think this was a bad movie. The characters were pretty interesting and the concept itself was fun. The amusing banter between the characters was easily the best part of this film. The acting was fine, though nothing note worthy. Not bad, but not that good either. This could be a pretty nice movie rental. I'd give this a Fresnerd C+.