I've been hosting a sort of informal film club (i.e. I've had a bunch of people come over to watch movies on a regular basis) since the beginning of the year. We're currently watching a set of films revolving around the "Doppelgänger" theme (Another Earth, Never Let Me Go, Vertigo, La Double Vie de Veronique, In the Mood for Love, Mulholland Drive). For the fall I'm looking for a bunch of "lone wolf"/"loner"-themed (German: Einzelgänger) movies. Any ideas or recommendations.
On the short list so far (some of those I consider eligible because I've seen and liked them, others simply due to things I've read and heard): The Machinist (2004), The Road (2009), The Grey (2011), Groundhog Day (2011), Carrie (1976), There Will Be Blood (2007), Mad Max (1979), First Blood (1982), Rocky (1976), No Country For Old Men(2007), Leon: The Professional (1994), Rushmore (1998), Drive (2011), Taxi Driver n(1976), A Fistful of Dollars (1964), Repulsion (1965), Eraserhead (1977), The Straight Story (1999), All Is Lost (2013), Django (1966)