Given the question: What key details about matthew porterfield can be extracted from the following bio? Bio: matthew '' matt '' porterfield -lrb- born october 6 , 1977 -rrb- is an american independent filmmaker . he has made three feature films to date , '' hamilton '' -lrb- 2006 -rrb- , '' putty hill '' -lrb- 2011 -rrb- and '' i used to be darker '' -lrb- 2013 -rrb- . both '' putty hill '' and '' i used to be darker '' had their international premieres at the berlin international film festival . all three of his features have had their local premieres at the maryland film festival .
The answer is:
- years active is 2006 -- present- birth name is matthew porterfield- birth date is october 6 , 1977- name is matt porterfield- website is -lsb- http://hamiltonfilmgroup.org hamiltonfilmgroup.org -rsb-- birth place is baltimore , maryland , u.s.- occupation is film director , screenwriter