People will hate you, but they won't say anything because it's a baby. Try to go during nap time. Breastfeeding might be weird during love scenes.
People will hate you and they will say something, but you won't hear it over the noise your toddler is making. Sit a row behind your kid and pretend he's not yours.
They'll be going, but not with you. I would suggest avoiding the movies at all costs to avoid accidentally running into your teen. They don't actually watch the movie. I'd rather not talk about it.