Good script for upscaling anime DVD to 1080p

[libastral]

Looking for the script that will give the absolute good quality and nicely curved edges. Found this, but it doesn't look that great on my video (it has a lot of action scenes)
http://www.youtube.com/watch?v=iz3bLWdJMEc
The DVD is 720x576, 4:3

[SyntheticEmpathy]

Look into nnedi if you aren't looking for playback in real time. Otherwise, I guess you could try Lanczos.

[Ghitulescu]

You think that this will improve your anime?

[naoan]

Any sample? Why not just watch it on your PC/HTPC with madvr and realtime fft3dgpu+debander like flash3kyuu? Maybe throw in fastlinedarken and awarpsharp2 depending on the source.