Kevin Costner hopes Bobbi Kristina Brown has made a ''good decision'' to star in a reality TV show.

The 57-year-old actor - who starred alongside Bobbi's late mother Whitney Houston in legendary movie 'The Bodyguard' - wouldn't agree to be followed by cameras himself but is hoping that the teenager's agreement to do so will be right for her.

Kevin Costner prefers not to think of Whitney Houston's ''troubles''.

The 'Hatfield & McCoys' actor delivered the eulogy at his 'Bodyguard' co-star's funeral in February, and though he was aware of her personal problems, including a struggle with drug abuse, he doesn't think her difficulties overshadow her professional achievements.

Princess Diana wanted to star in a follow-up to 'The Bodyguard' according to Kevin Costner.

The late mother of Princes Harry and William asked Kevin to help launch her film career just as he had for Whitney Houston - who played his on-screen love in the original 1992 movie.

Whitney Houston's family feels ''saddened'' by the results of her toxicology reports.

The 'I Will Always Love You' singer's lifeless body was found submerged in the bath tub of her Beverly Hills hotel suite on February 11 - and the Los Angeles County Coroner has now given her official cause of death as accidental drowning caused by heart disease and cocaine use.

A pair of earrings Whitney Houston wore in 'The Bodyguard' are to be sold in an auction of her possessions.

The jewellery - which the late star donned opposite Kevin Costner in the hit 1992 film - is among several items that once belonged to the singer which are to be sold by Julien's Auctions in Beverly Hills as part of their 'Hollywood Legends' sale.