There has been a previous thread about the notable improvement icon and what it means. It was fairly inconclusive.
http://tasvideos.org/forum/viewtopic.php?t=13783&start=0&postdays=0&postorder=asc&highlight=
The reason I am therefore posting a fresh thread is because I believe from the previous thread that no hard-and-fast rules for what is considered a notable improvement were established. However, I think for most improvements, people can generally agree whether they are notable or not, especially for the more familiar titles, so it makes sense to do this case by case. Since, compared to issues like obsoletion and branch names, this is a fairly minor change, but also one that probably applies to a lot of movies, the process will be: people can nominated a movie to have this flag added/removed, preferably giving reasoning, and if no-one disagrees with them within a couple of days, I will make the change. It will give me a chance to abuse my new Editor status.
Right, to get the ball rolling, here's a starter:
[1960] DS Super Mario 64 DS by mkdasher & ALAKTORN in 09:50.65. This movie takes a third off the previous run, collects one star instead of eight, and abuses a death. The overworld route is wholly different, at least until Mario is unlocked.