To help out with your co-directorial debut, we've prepared a cross-section of the wedding day cast of characters. (Keep in mind that most roles can be played by either gender, and by as many people as you want.) This guy acts as groom's valet (personal aide and advisor) through all stages of wedding planning.
Implicit bias occurs when someone consciously rejects stereotypes and supports anti-discrimination efforts but also holds negative associations in his/her mind unconsciously.
Observer bias can also be introduced because researchers see a behavior and interpret it according to what it means to them, whereas it may mean something else to the person showing the behavior. See subject-expectancy effect and observer-expectancy effect.