Another con for theme parties is if you or your partner´s family is religious. If trying to persuade your strict Catholic or Jewish parents that a beach wedding without a church or temple in site and with casual wedding attire is what you both want is going to cause hell from the start, is it really worth all the extra stress? Probably not. And finally, if your theme is very complicated, “Titanic meets Bollywood,” make sure your wedding budget can accommodate all the extra expenses and that your co-star is fully on board.