The most common is to run the film faster resulting in a shorter movie runtime (by about 4%). What also happens is the pitch starts to go up (like fast forwarding an audio tape while listening).
In some cases they will use digital processing to correct this, but I find that to be more the exception than the norm.
Your method of using pulldown is just find for achieving synchronized audio and video, but it also has no effect on the actually run time/play speed/audio pitch.
If T3's PAL DVD release did not correct for the higher pitched audio, using pulldown flags will not correct it.
In none of these cases will the actually audio synchronization be effect.
I hope this makes more sense than my last post.