I don’t know why I’ve been so slow to wake up to Joe Swanberg’s Happy Christmas (Magnolia, 7.26), but it’s obviously not about a “happy” anything. Obviously a layered, behavior-driven, Swanbergian piece about lifestyles, values, addictions, frustrations, etc. Jenny (Anna Kendrick), an irresponsible party animal, moves in with her somewhat older brother (Swanberg), his wife (Melanie Lynskey) and their young kid. Complications ensue. I haven’t seen it but I’ll bet any amount of money that Kendrick sleeps with someone inappropriate and that this in itself shifts tectonic plates. Honestly? My first reaction was to shine Happy Christmas because Lena Dunham costars, and I’m frankly getting a little tired of her schtick. I just need some time away from her. It’s partly that short haircut and partly the constant eating of ice cream on Girls.