Kevin Costner uncovers 'ugly' feud with Royal Family

The 69-year-old had been due to make a sequel to the 1992 film with Princess Diana on board to star. A script was reportedly completed the day before her tragic death at the age of 37 in August 1997 causing the movie to be subsequently cancelled. But now Kevin has cast his mind back to that point in his career and has claimed that the Royal Family clashed with him over plans. Opening up on The Howard Stern Show on Tuesday, the American actor said…