The 1950s were full of corny Sci-Fi features.  THE DAY THE EARTH STOOD STILL is one that has a bit more brain behind it...and more than its 2008 remake does.  There isn't much action, and most of the film has Klaatu just talking to humans and trying to get a grasp on who they are and how they act.  Sometimes the relentless dialogue gets tedious, but this film, directed by the great Robert Wise, is entertaining enough to not be pigeonholed into that B-Movie status.