Whitney made her film debut in 'The Bodyguard,' starring alongside Kevin Costner. The film was a commercial success, grossing over $410 million worldwide.

Whitney starred in 'Waiting to Exhale,' directed by Forest Whitaker. The film's soundtrack included the hit single 'Exhale (Shoop Shoop).'

Whitney starred alongside Denzel Washington in 'The Preacher's Wife,' which became the best-selling gospel album of all time.

Whitney played the role of the Fairy Godmother in the made-for-television remake of 'Cinderella.' She also produced the film.

Whitney's final film role was in 'Sparkle,' where she played the role of Emma Anderson. She also executive produced the film.