A quartet of titles joined the 4xblu online store’s virtual shelves today. Among their ranks are the Masters of Cinema release of “RoGoPaG,” an anthology film made up of segments directed by Roberto Rossellini, Jean-Luc Godard, Pier Paolo Pasolini, and Ugo Gregoretti; Gregg Araki’s stoner comedy “Smiley Face,” one of the shop’s best selling titles; David Lean’s “Summertime,” a Technicolor picture in which Katherine Hepburn plays a tourist who falls for a Venetian antique dealer; and Claire Denis’s provocative thriller “Bastards.”