Oops, didn't see this thread before I sent my PM yesterday, so sorry for any duplication.
If the laptop has an S-video or composite video output, then it can be connected to a suitable TV, eother with a simple S-video or RCA patch lead, or by using a suitable adapter lead to a set which has only a SCART input (the big rectangular multi-pin connector found on all modern domestic European TVs). It is also possible to get a combiner unit to connect an S-video output to a composite video input, although you will lose a little quality compared to using a direct S-video link. I'll dig out some links to suitable leads/adapters if you can let me know what type of video outputs/inputs you have available.
For any of this to work, you'll either need a TV which will accept American NTSC video (many of the latest British sets will), or you would need to configure the laptop to output in 625/PAL format, if it is capable (which will depend entirely upon the video chipset and software). Be aware though that playing an NTSC DVD this way will result in some degradation to the picture due to the conversion process.
As stated already, some Region 2 players can be converted only with internal modifications, but some can be "de-regionalized" by just accessing a hidden menu.
Note that playing a normal American DVD will still result in an NTSC video signal, so you'll still need a TV capable of displaying NTSC video.