Does anyone know a mac app for converting a movie (.mov) to a series of images ? I know quicktime could do this in the olden days, but that features has been deleted.
Yup, you still can do it with Quicktime Player. Download it from here. I believe you can also install it from the Snow Leopard install disc. I'm not sure about the Lion install download. Open the movie and click File>Export:
Then you can select Movie to Image Sequence:
Set your destination folder and watch Quicktime Player do its magic.
You can also use ffmpeg:
ffmpeg -i input.mkv -r 0.05 image_sequence%06d.png
-r 0.05 = 0.05 Hz = 3 images per minute. It sometimes includes a few extra frames from the start though. Without -r it saves every frame.
There is an app called "movie2picture" in App Store.
We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.