The saying goes that if you think everyone you meet is an asshole, then the real asshole is probably you. Alex Ross Perry’s brilliant, caustic Listen Up Philip serves up two of recent cinema’s finest assholes, a men of letters two-hander of Jason Schwartzman’s young novelist and Jonathan Pryce as the past-it literary icon he so admires. Schwartzman has a habit of playing characters on the fringes of sufferability, from Funny People‘s sell-out comic to the word-smart P.I in Bored to Death, and here he pushes through to the other side, into a glorious, all-out prickishess. Philip (Schwartzman) is preparing for the launch of his second…