In the following examples, at the top of each is the full frame (suitably shrunk down) used in the comparison, with a 250 pixel wide detail from the frame underneath. The left side is from the PAL DVD. The image was captured digitally from the disc, scaled up from its native 720 by 576 resolution to 1,024 by 576 (to present in the 16:9 aspect ratio), and then, in order to be comparable to the Blu-ray version, from that to 1,920 by 1,080. The detail is from that last scaled version, and has not been rescaled again. The right side is from the Australian Blu-ray. This has not been scaled at all.

Different applications were used to capture the two frames, so I am not normally comfortable comparing the colour between the two, merely the detail and sharpness. For those visitors from NTSC lands, generally the PAL DVD is just a touch sharper than the NTSC DVD.

Some of the outdoor shots don't appear to be especially sharp, but even so there is a marked improvement in detail and clarity offered by the Blu-ray:

This movie contains quite a few 'TV POV' shots: snippets of TV coverage cut into the movie. These are indicated by the usual conventions: low resolution and visible horizontal scan lines. Barely visible in the case of the DVD. Interestingly, the scan lines don't actually come from the TV footage, because they don't line up with the pixels. They must have been added in post production:

The cut glass pattern on the lamp is quite invisble on the DVD: