Elliot V. Kotek interviews Maggie Siff and Robin Weigert about their new film "Concussion" at the 2013 Sundance Film Festival. <br /><br />Watch more videos here <a class="link" rel="nofollow" target="_blank" href="http://www.celebs.com">http://www.celebs.com</a> <br />Facebook page <a class="link" rel="nofollow" target="_blank" href="http://www.facebook.com/celebsfans">http://www.facebook.com/celebsfans</a>
