release does not coincide with a calendar year, instead of covering one year starting on October 1 and ending on September 30 of the calendar year before the ceremony. Second, there are multiple methods of qualification. The main method is a week-long theatrical release in either Los Angeles County or New York City during the eligibility period. Films also can qualify by winning specified awards at one of several competitive film festivals designated by the Academy, also without regard to prior public distribution. Finally, a film that is selected as a gold, silver, or bronze medal winner in an appropriate category of the immediately previous Student Academy Awards is also eligible (Documentary category for that award, and Animation, Narrative, Alternative, or International for the other awards). The requirements for the qualifying theatrical run are also different from those for other awards. Only one screening per day is required. For the Documentary award, the screening must start between noon and 10 pm local time; for other awards, no specific start time is required, but the film must appear in regular theater listings with dates and screening times. In late December, ballots, and copies of the Reminder List of Eligible Releases are mailed to around 6,000 active members. For most categories, members from each of the branches vote to determine the nominees only in their respective categories (i.e. only directors vote for directors, writers for writers, actors for actors, etc.). In the special case of Best Picture, all voting members are eligible to select the nominees. In all major categories, a variant of the single transferable vote is used, with each member casting a ballot with up to five nominees (ten for Best Picture) ranked preferentially. In certain categories, including International Feature Film, Documentary and Animated Feature, nominees are selected by special screening committees made up of members from all branches. In most categories, the winner is selected from among the nominees by plurality voting of all members. Since 2009, the Best Picture winner has been chosen by instant runoff voting. Since 2013, re-weighted range voting has been used to select the nominees for the Best Visual Effects. Film companies will spend as much as several million dollars on marketing to awards voters for a movie in the running for Best Picture, in attempts to improve chances of receiving Oscars and other movie awards conferred in Oscar season. The Academy enforces rules