Factual error: When Richard goes to the mainland with Sal, he calls back home to say that he is OK. International phone calls cannot be made from the blue public phones of the type he uses. Only public phones from CAT (Communication Authority of Thailand) can be used for this purpose. Richard was calling from a TOT (Telephone Organization of Thailand) phone.
Continuity mistake: At the end, you see Richard downloading the picture from Francoise. In the first shot of the computer downloading the picture, you see an ad at the top of the computer screen. In the second shot of the computer it's not there. In the third shot of the computer it's back again.