The cam probably hasn't been out in the wild long enough. On average a film will take 2 years to complete. Assuming most folks are just NOW starting to get their hands on it, it might take a while. Also, factor in a steep learning curve, a lack of filmmakers being enthused about some of the BMCC's shortcomings when it comes to workflow, and it might be some time before we see an actual feature shot on it.
And if we do, it will most likely be from a lower-budget indie. Thus, chances of actually viewing it in a cinema are rather small.