Introduce 3:2 pulldown

If you are creating output for film that’s been transferred to video, or if you want to simulate a film look for animation, use 3:2 pulldown. Footage items that were originally film transferred to video and had 3:2 pulldown removed when imported into After Effects can be rendered back to video with 3:2 pulldown reintroduced. You can introduce 3:2 pulldown by choosing one of five different phases. (See Remove 3:2 or 24Pa pulldown from video.)

Note: It is important to match the phase of a segment that had 3:2 pulldown removed if it will be edited back into the video footage it came from.
  1. In the Render Queue panel, select the render item and then click the underlined text next to the Render Settings heading.
  2. For Field Render, choose a field order.
  3. For 3:2 Pulldown, choose a phase.
  4. Select other settings as appropriate, and then click Render.

Chris and Trish Meyer provides an overview of 3:2 pulldown in an article on the Artbeats website.