Tallulah Winters is a dancing star who is hired to perform on an ocean liner. Before she leaves, she is recruited by what she believes is a branch of the American government and asked to smuggle a prototype explosive mine out of the country. In fact, she is unknowingly working for Nazi agents who have stolen the mine. Meanwhile, Merton Kibble, a writer of pulp fiction adventure stories suffering from severe writer's block, is on the same ship, and soon he finds himself embroiled in Tallulah's real-life adventure.

The brief finale takes place in front of a Navy recruiting station. surrounded by a chorus of sailors. The guys and their girls—and Dorsey's orchestra —are all in uniform, singing “Last Call for Love.”

• Eleanor Powell as Tallulah Winters
• Red Skelton as Merton K. Kibble
• Bert Lahr as "Skip" Owens
• Virginia O'Brien as Fran Evans
• William Post Jr. as H. U. Bennett
• James Cross as "Stump"
• Eddie Hartman as "Stumpy"
• Stuart Crawford as Art Higgins
• John Emery as Dr. Farno
• Bernard Nedell as Pietro Polesi
• Tommy Dorsey as himself
• Frank Sinatra as himself
• Buddy Rich as himself
• Ziggy Elman as himself
• Moroni Olsen as Inspector Davis
• George Watts as Hotel detective
• Ralph Dunn as Flammer
• William Tannen as Grimes

Ship Ahoy was the first of two films in which Powell and Skelton co-starred. It is considered a lesser effort for both actors. ^{[citation needed]}

The film is chiefly remembered today^{[citation needed]} for an uncredited performance by Frank Sinatra as a singer with the Tommy Dorsey Orchestra.

The movie includes a number in which Powell's character, communicates with US agent in the audience by tapping out a message in morse code.^[2]

The film was to be called I'll Take Manila but was renamed after the Japanese captured the Philippines. The setting was changed to Puerto Rico and the song “I'll Take Manila" became "I'll Take Tallulah".^[2]

Skelton and Powell next paired up in 1943's I Dood It. In that film, they appeared with Jimmy Dorsey, Tommy's brother.

In his June 26, 1942 review in The New York Times, Bosley Crowther lightly praised the “moderate and tuneful little cruise…Metro has stretched the whole thing out about half again as long as it should be, with the consequence that it sags and labors rather heavily in spots. But it skips along right merrily when Miss Powell is doing her turns, especially in a lively rhythm number to a tune called "I'll Take Tallulah." “ ^[3]

According to MGM records the film earned $1,831,000 at the US and Canadian box office and $676,000 elsewhere, making the studio a profit of $1,470,000.^[1][4]

• Ship Ahoy at IMDb  
• Ship Ahoy at AllMovie
• Ship Ahoy at the TCM Movie Database
• Ship Ahoy at the American Film Institute Catalog