The real life names of the competing railroads were Union Pacific and Southern Pacific. Though both railroads were major competitors in the state of California, they would finally merge in 1996 to become the largest railroad in the western half of the United States.
The title and premise is a parody of the Union Pacific Railroad and Cecil B. DeMille's Paramount feature Union Pacific (1939) that premiered the previous year.
As with most of the Famous Studios films of this era, the background images are carefully rendered, with attention to the smallest detail.
This is the final appearance Wimpy in a Fleisher Studios Popeye theatrical cartoon. Wimpy wouldn't appear in another theatrical cartoon until 10 years later in Popeye Makes a Movie (1950) from Paramount's Famous Studios.
As the short opens, the song, "We're All Together Now," from the Fleischer Studios color feature, "Gulliver's Travels," can be heard playing.
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What was the official certification given to Onion Pacific (1940) in the United States?
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