Fleeting moments of marital bliss is the subject of Rebecca Addelman’s Paper Year, a film that explores the tumultuous first year of marriage between two millennials living precariously in Los Angeles.  Although largely sympathetic to its central couple, Paper Year often feels like it would have more potential as a cautionary tale for young lovers trying to make it big in the entertainment industry.  Though, perhaps it is the balance between sympathy and cautionary that…