Joan Collins reveals 'quite volatile' relationship with Elizabeth Taylor's ex Nicky Hilton in new BBC doc

Dame Joan Collins has opened up about her past relationship with the late Conrad 'Nicky' Hilton Jr., describing him as "quite volatile."

The 91-year-old actress briefly dated the hotel heir, known as Nicky, in the late 1950s after his marriage to Elizabeth Taylor.

In the new BBC documentary series Elizabeth Taylor: Rebel Superstar , Joan revealed: "I did [date him]. He was nuts. He was quite volatile. Once we were lying in bed and he took out this gun from the side table and shot it to the ceiling. Nicky Hilton had a problem with being too good-looking and too rich, and I don't think he got a lot of love from his father!"

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Elizabeth Taylor reportedly wrote in her 1988 memoir, Elizabeth Takes Off, that her first marriage began to fall apart after just eight months as Nicky became "sullen, angry and abusive, physically and mentally."

Nicky passed away from a heart attack in 1969 at the age of 42. According to Bang Showbiz, earlier this year, Nanette Burstein's documentary Elizabeth Taylor: The Lost Tapes - which features hours of previously unheard recordings of the famous actress discussing her life - claimed that she had received a split lip from Nicky, and that he once kicked her in the stomach so hard that she suffered a miscarriage.

The Dynasty legend opened up about her admiration for Elizabeth as part of Kim Kardashian's new documentary on the Hollywood icon. She shared heartwarming memories, saying: "My friends and I, we all wanted to look like her. We all did big eyebrows like her. But I know that she had a difficult time," reports the Mirror .

Elizabeth, the quintessential starlet who passed away in 2011 at the ripe age of 79, had an eventful romantic history. Nicky was her starter husband until they parted ways in 1951.

Following that, she was paired with Michael Wilding from '52 to '57, enjoyed a brief union with Mike Todd until he tragically died in '58, hitched to Eddie Fisher from '59 to '64, and then entered a tumultuous on-again-off-again marriage with Richard Burton in the swinging '60s and turbulent '70s.

Her penultimate marriage to John Warner lasted from '76 to '82, and the final knot was tied with Larry Fortensky, ending with their split in 1996.