Have you thought what would Joan Colins be without her sister?

 Dynasty

Jackie Collins made her sister a star

It one of the wonders of having a bestseller as a sister, she can make a low-grade actress into a DBE.

Before the film The Stud, Joan Collins was a struggling actress, her claim to fame was being married to singer Anthony Newley. The irony is the character in the book by Jackie Collins is based on Joan's life at the time