Regal (Hastings) Ltd v Gulliver [1942] UKHL 1, is a leading case in UK company law regarding the rule against directors and officers from taking corporate opportunities in violation of their duty of loyalty. The Court held that a director is in breach of his duties if he takes advantage of an opportunity that the corporation would otherwise be interested in but was unable to take advantage. However the breach could have been resolved by ratification by the shareholders, which those involved neglected to do.