In its entry for this 1966 movie, the 2003 edition of Leonard Maltin's 'Movie and Video Guide' repeats a popular American terminological inexactitude by referring to the ocean liner as "HMS Queen Mary", thus implying that it was a warship at the time of the events depicted in the movie. The truth is that its designation has always been "RMS", traditionally meaning "Royal Mail Steamer" but nowadays sometimes taken to mean "Royal Mail Ship".
The Coast Guard cutter featured in the film displays the prototype of the modern racing stripe now used on all cutters. It was designed by Raymond Loewy/William Snaith and the final version was adopted service-wide 6 April 1967.