Final answer:
Brad Pitt sporting Patagonia clothing can act as an endorsement, increasing brand awareness, consumer trust, and potentially boosting global sales through his broad and international fan base.
Step-by-step explanation:
Brad Pitt wearing Patagonia clothing in the media can have several positive effects for the brand. Firstly, celebrity endorsements serve as a form of social proof, where consumers are influenced by the choices of people they admire or seek to emulate. When a high-profile celebrity like Brad Pitt is associated with a brand, it implicitly suggests that the brand is of high quality, desirable, and fashionable.
Secondly, such exposure can boost brand awareness and broaden the consumer base by reaching people outside of the brand's current audience. Brad Pitt has an extensive and diverse fan base, and his wearing Patagonia may attract these fans to the brand. Finally, celebrities often have an international following which can help increase the global appeal and market for Patagonia clothing, potentially resulting in increased sales and expansion into new markets.