Members appear first in searches, receive email notifications of new open calls and can upload up to 10 photos, video and a biography. Calls can fill up very quickly and be fully booked (and even taken down) before you become aware of the listing—but with email notifications, Pro members hear about open calls as soon as they go up. A Pro membership is completely optional and is not required in order to be booked. However, for extras who are looking to work more regularly or be seen more often, it can be a good investment.