'Jeff, Who Lives at Home' shows Segel and Helms at their best

Jay and Mark Duplass broke into the movie-making scene as part of the lo-fi movement dubbed ''mumblecore''.

Films like 'The Puffy Chair' and 'Baghead' kept the action intimate, the situations low-key and the dialogue off-the-cuff. As they stretched their wings and continued to evolve, as with 2010's Jonah Hill/John C. Riley-starring 'Cyrus', their roots were always planted firmly in the grit of realism.