Creators Dan Povenmire and Jeff 'Swampy' Marsh decided that Star Wars spoofs had already been done so much that they decided to leave the original film alone and instead add Phineas and Ferb as characters coexisting at the same time. According to them it is possible to cut the 1977 film and this TV special together into one chronological story.
When Phineas and Ferb are looking at the Death Star schematics, 3 text boxes with writing in Aurebesh appear. These read: "You got a joke no one else did.", "If you have paused this and translated this into English, congratulations.", and "Now go impress your friends!".
Throughout the episode, there are multiple references to the infamous changes that were made to the original Star Wars: Episode IV (upon which the special is based). An example would be when workers are disposing of Greedo's remains and the worker to the far left says: "Someone said he shot first, but I could have sworn it was the other guy", a reference to the change from the original release in which Han Solo fires on Greedo (whilst Greedo is simply shot) whereas in the altered versions Greedo fires (and misses) followed by Solo firing in return (not missing).
Two cast members, Thomas Brodie-Sangster (the voice of Ferb) and Simon Pegg (the voice of both C-3PO and an Imperial officer) would later play characters in an actual Star Wars film. In "Star Wars: The Force Awakens," Brodie-Sangster portrayed Petty Officer Thanisson, and Pegg portrayed Unkar Plutt.
In the opening office scene, one of the stormtroopers addresses another as TK-582. While stormtroopers indeed have a 'TK+number' designation, this particular one is an office reference: TK582 is the product code of Kyocera printer cartridges.