 At the same time, the voting system was switched from first-past-the-post to instant runoff voting (also known as preferential voting).Two years after this change, the Academy revised the rule again so that the number of films nominated was between five and ten; nominated films must earn either 5% of first-place rankings or 5% after an abbreviated variation of the single transferable vote nominating process.Bruce Davis, the Academy executive director at the time, said, "A Best Picture nomination should be an indication of extraordinary merit.