A short clip showing the before and after for a scene that HAD to be ADR'd because of really bad traffic issues. Part of the key is to process the ADR so it fits with the rest of the film and of course to add and fill out an appropriate new background.

ADR takes a lot of time and or $$$. It is the LAST resort not the first. But it can be done well, even on a small budget.
A short clip showing the before and after audio post. The as edited track is OK except for some drop outs due to speed changes, but Audio post makes it a much better experience.