If you mean something like 1920 x 1080, then yes, it supports it without a hitch. The briefing movies are kind of small but the actual gameplay screen takes up your whole screen without unsightly stretching.
I buy this game today but it dose not support widescreen resolutions as you said actually part of the screen is cut with resolutions 1024x768 this isn't what I expected from gog I mark this topic as solved but actually isn't solved at all
Apparently, I misread your post and thought that you may have meant does the game play well on widescreen. For unintentionally misleading you I do sincerely apologize and please note that it was not my intent to mislead you in any way.
What I was trying to say is that the game played quite well on my 1900 x 1200 monitor without black bars or stretching. I forgot to take into account that the highest resolution the game itself supports is 1024 x 768.
Once again, I apologize for the misinformation.