I've been to weddings that had an "open" ceremony and a closed reception. This has generally been at a church, where the wedding itself is announced to the whole church community, but then the reception is a more limited number of family and friends.
More commonly though, I've been to weddings where they had a small private ceremony (just the couple, officiant, and a handful of family), and then a large reception for everyone in the evening.
More commonly though, I've been to weddings where they had a small private ceremony (just the couple, officiant, and a handful of family), and then a large reception for everyone in the evening.