As a costume designer, your job is to buy, rent, or make costumes for actors. You discuss design choices with other staff members, sew new outfits from a pattern, decide what makes sense for the physical demands of a performance, and perform fittings to ensure each costume fits. Costume designers can work in a variety of fields, including movies, television, theatre, and other performing arts. In many cases, you spend time researching the fashion trends of the past, manage a costume budget, and interpret the producer's creative vision. You must also confirm when and where costumes need to change during a performance to ensure everyone has enough time to do so.