Assault on a Queen is a 1966 American action-adventure film directed by Jack Donohue and starring Frank Sinatra and Virna Lisi.

Brittain returns the submarine to operational order with the assistance of his partner Linc and new man Moreno, a war hero and expert with engines.

Disguised as officers from a British submarine on a top-secret mission, Brittain, Rossiter and Lauffnauer bluff their way aboard the Queen Mary and threaten its captain with a torpedo attack if he or his crew refuse to comply with their demands to be granted access to the cash in the ship's safe.

When a U.S. Coast Guard cutter in the vicinity comes to the ocean liner's aid, Lauffnauer wants to fire the submarine's torpedoes at it, but Brittain voices strong opposition.

At the time of filming, Minnetonka was homeported in Long Beach, California, close to Paramount's studio facilities in Hollywood.