Documentary has never attracted such audiences, never been produced with such ease from so many corners of the globe, never embraced such variety of expression. The very distinctions between the filmed, the filmer and the spectator are being dissolved. The Act of Documenting addresses what this means for documentary's 21st century position as a genus in the "class" cinema; for its foundations as, primarily, a scientistic, eurocentric and patriarchal discourse; for its future in a world where assumptions of photographic image integrity cannot be sustained. Unpacked are distinctions between performance and performativy and between different levels of interaction, linearity and hypertextuality, engagement and impact, ethics and conditions of reception. Winston, Vanstone and Wang Chi explore and celebrate documentary's potentials in the digital age.