By way of Jenna and Allie's Flick Chicks blog (which I heartily recommend), I came across the film site The Matinee and their Blind Spots series. Running for five years now, the idea is to pick twelve well known or highly rated films you should have seen but for whatever reason never have. Your blind spots, in other words. The reason for selecting twelve is that you watch and review one each month, and is an achievable movie-watching goal for the year. You can read more about it (and join in if you want) here.
I have probably already seen the majority of what I'd say were regarded as the classics, especially now I've finished the 1001 Movies You Must See Before You Die book, but there's an endless supply of great films out there. So the most logical method of coming up with a list seemed to be: head to IMDb, tick off everything I'd seen in the top 250 rated films, and pick out 12 from those remaining. At the time of writing I've seen 211 of those, though the unseen includes some new releases like Star Wars. And now I have my twelve that I aim to have seen and reviewed by the end of 2016, some are titles I've not heard of before and others I've simply overlooked.
American History X (1998)
Before Sunrise trilogy (1995-2013)
Good Will Hunting (1997)
Hotel Rwanda (2004)
In the Name of the Father (1993)
The Intouchables (Untouchable) (2011)
Judgement at Nuremberg (1961)
La Haine (1995)
Mary and Max (2009)
Wild Tales (2014)
Witness for the Prosecution (1957)