The NTSC videos as everyone knows have 30fps to 25fps on PAL
I'm not going to talk about the difference in resolutions, as it is marginal.
The NTSC
feature film DVDs (which are the ones we are talking about) are
24p. That means that the actual video on the disc does not use 3:2 pulldown, as it is not a 60i video. This is called a 24p DVD. "p" is for progressive. So the 24p DVD is technically very similar to a 25p DVD (PAL).
So, what do we know so far? That feature film DVDs, 480p24 (NTSC) and 576p25 (PAL), are very similar. What's the problem with 24p DVDs then? Nothing. The "problem" comes when viewing it:
Viewing on a normal DVD player:
The player will add a 3:2 pulldown, as to create a 60i signal that the TV can understand.
Viewing on a progressive DVD player:
The player will not add any pulldown. Your TV will have to be able to accept progressive signals. Guess what! In this case the TV adds the pulldown!
The thing is, you are going to be viewing 24fps over 60Hz. This is more jerky than 25p DVDs because PAL runs at 50Hz (25fps over 50Hz). This is why PAL feature film DVDs appear to have
smoother motion than the NTSC version, when played on an ordinary TV.
How do you watch the 24p DVDs without the pulldown? For that you would need a display that can play the 24fps video over 72Hz (24 x 3) or 96Hz (24 x 4). I don't know if any consumer TVs can do this.
One way it can be done, is with one of those new
100/120Hz TVs with *
motion compensation. Here the TV will take the 24p signal and use motion compensation to arrive at 120Hz. The resulting video will not be jerky.
Needless to say, TVs like these are expensive and 3:2 pulldown is an NTSC thing that we (PAL region) should not have to worry about.
We live in a PAL region and we want to see our feature film DVDs running at 25fps for our 50Hz TVs, thank you very much! If the DVD is not available in PAL, only then get the NTSC DVD. That said,
I have had some bad feature film DVDs from Ster Kinekor
and Nu Metro 
. What the hell is their problem!? (and the sound at their cinemas

- bring your earmuffs

)
*Motion compensation: Motion compensation uses motion estimation algorithms and lost of processing power to create new "in between" frame from existing frames. This is not pulldown or frame blending. These are unique frames. It's amazing to see this technology in a consumer product. It has been used since the mid nineties in standards converters, to convert between the NTSC and PAL systems. But only because of big advances in motion estimation algorithms and processing power are we seeing it in consumer products.