Burton recalls filming "Cleopatra" with Taylor in Hollywood. Actually, the film was made in Rome.
Elizabeth Taylor's "beauty spot" was on the right side of her face, whereas on Helena Bonham Carter's it appears on the left side.
Liz took a lip gloss out of her handbag around 17 minutes into the film. this kind of lip gloss was not available until the 21st century,
The movie is set in 1983 when "Private Lives" ran for 63 performance on Broadway. Yet an establishing shot early in the film shows New York's Times Square with billboards for "The Who's Tommy" and the revival of "Guys and Dolls." These shows were playing on Broadway from 1993 to 1995, 10 to 12 years after the film's setting.
Whilst showing a shot of Broadway, there is a clear billboard of the characters "Will & Grace."