The singer at the wedding, Avalon Harmonia (Angela's psychic) is played by award-winning singer Cyndi Lauper
When Booth is lighting a candle for Bones mother at the church, Aldo - a former priest - crosses himself backwards. He crosses right to left when it should be left to right.
The song "At Last" is performed by Angela's psychic at the wedding. Patricia Belcher who plays Caroline was in the film 500 Days of Summer (2009) as Millie who gets married later in the plot. At her wedding the same song is performed. Emily Deschanel's sister, Zooey Deschanel, is the star of this film.