Background Facts: Glamour Inc. makes cosmetics that it distributes for sale through independent retail stores. Glamour recently launched a marketing campaign to promote its line of cosmetics by appealing to the glitz and allure of Hollywood movies, including using the tag line "the Glamour of Hollywood." As part of its marketing campaign, Glamour wants to hold an event to coincide with the Academy Awards, an annual award show that recognizes achievement in film with awards (popular referred to as "Oscars"). The award show attracts media coverage and television viewers because it is attended by many famous movie actors and actresses. On the day of the award show, Glamour plans to host an "Oscar party" at the historic Hollywood Roosevelt Hotel, located across the street from the Dolby Theater where the Oscars have been held since 2001. The party will feature free food and drinks, and projectors and large screens to watch television coverage of celebrities arriving and being interviewed on the red carpet before the award show, as well as the broadcast of the award show itself. Partygoers can also try free samples of Glamour's cosmetic products, including having them applied for free by Hollywood makeup artists hired by Glamour for the event. The signature attraction at the party will be a visit from a famous actress, whoin addition to endorsing Glamour's cosmeticswill have her makeup prepared using Glamour's products before leaving to attend the award show, where she is nominated for an Oscar. Glamour is currently negotiating contracts with a range of different businesses for the event, including the Hollywood Roosevelt Hotel (to rent a conference room), an event management company (to plan, equip, and staff the event), a catering company (to provide food and beverages), makeup artists (to apply its cosmetics), and a famous actress (to endorse its products and wear its makeup to the Oscars). Apply the contract law topics covered in Part 4 of the course to answer the following questions.

Glamour is trying to be as thorough, clear, and detailed as possible in negotiating its contracts with the various vendors involved in the event. But Glamour is worried that, despite its best efforts, factual misunderstandings may arise during contracting that could later provide a basis for a vendor to avoid performing the contract. What can Glamour do (from a legal perspective) to avoid the risk of a vendor avoiding a contract based on mistake? Explain your reasoning.