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The grass is always greener.... In this British comedy, two drunken comrades find out the truth of that saying when they decide to trade places for a while. One of the boozers is a public relations man who knows nothing about sailing, while the other is a captain for the Royal Navy. Riotous comic mayhem ensues as the hapless "captain" tries to run his ship and follow orders. When the bumbling fellow's inadvertence sinks one of the fleet's own ships, he ends up locked in a rubber room until the two manage to extort someone into helping them resume their rightful identities. The film was originally titled The Ship was Loaded, and bears no relation to the popular "Carry On" series.