Corrected entry: When Charlotte and Harry are dancing at the wedding reception, he tells Charlotte that he 'has to marry a Jew'. We later learn it was a promise he made to his now deceased mother. But we also know that Harry has been married before, as he told Charlotte he lived in the bachelor pad when he was going through his own divorce. His first wife must have been a Jewish woman, since he feels he has to marry a Jew and promised it to his mother. So Harry has already married a Jew, fulfilling his promise to his mother. The promise wouldn't likely extend to two wives! So his telling Charlotte that he has to 'marry a Jew' doesn't make logical sense for his character, since he has already been married to a Jew, and it wouldn't matter what religion his second wife would be.