To be or not to be … parents. That is the thorny question raised in Lauren Miller Rogen’s Babies, an astute charmer about a happy, supportive Los Angeles couple (Anna Kendrick and Seth Rogen) who, after 17 years of togetherness, begin wondering if they might be missing a bouncing bundle of something in their lives. Maybe it was all the times they heard friends with kids tell them, “You guys would be such great parents,” but Annie and Aaron suddenly find themselves addressing a topic they hadn’t really ever officially signed off on in the past. Babies The Bottom Line A genuine crowd-tickler. Venue: Toronto International Film Festival…