Petula Clark was originally offered the role of Nonnie Parry.

Sally Kellerman reportedly turned the role of Linda Rogo down.

Burt Lancaster admitted on the "Larry King" show, that he didn't think the part of Reverend Scott was right for him, even though the film was very entertaining.

She was to play the overweight former swimming champion who courageously saves the lives of her fellow passengers. Her real life husband, Fernando Lamas reportedly refused to let her accept this part.