This sort of thing always tests relationships that are grounded in commercial filmmaking, creativity and collaboration. This isn’t my business and I’m not a gossip columnist, but if I were Noah Baumbach I might be feeling….what, a bit twitchy about this? Not necessarily “resentful” but not, shall we say, entirely at peace. By the way: I never realized that Baumbach’s brilliant Greenberg (’10), which delivers a very particular kind of neurotic morose humor and which is known for being something of a bust, grossed more than the two Baumbach-Gerwig collaborations, Frances Ha (’13) and Mistress America (’15), the latter being a crackerjack modern-day farce a la His Girl Friday.