“Barney’s Version” is a bloated, confused movie—first a black comedy, then a distended family drama and never fully committed to either possibility. Adapting Mordechai Richler’s 1997 novel, director Richard J. Lewis aims for a sweeping narrative encompassing three decades in one man’s troubled world. The outcome is epically uneven, filled with admirable performances and operatic momentum, but ultimately too engulfed in its elegant structure to give the characters room to ...