This episode is indeed a prequel to The Clone Wars movie. As the series progresses, it will become evident that some of the stories are more in the format of an anthology, jumping about the timeline. This is especially true of the second season of Clone Wars episodes.

In the script, the opening sequence was to involve the clones setting up their own combat droid that they had nicknamed "The Beast." Its design would resemble the dome-shaped mining droids from A New Hope -- but modified with weaponry to look not too dissimilar to the head of a Dalek from Dr. Who. Ultimately, it was decided to keep the sides clearly defined as clones versus droids, and not clones using droids versus droids. Furthermore, the opening scene would not even display just what "The Beast" would do, so it was cut as an unnecessary story complication.

The script describes Obi-Wan's placement in the towers as both on 287th floor and the 46th level. This is not necessarily a contradiction.

The side of the tactical droid's head is stenciled with Aurebesh characters that read "Tactical".

The display screen that Cody uses to contact the Jedi says in Aurebesh, "Sending," "Receiving" and "Locating status."

Due to late editorial changes, at the end of Act I, you can hear Obi-Wan refer to Cody as both "commander" and "captain." The latter shot was originally of Kenobi referring to Rex.

During the first footchase inside the Republic base, it may sound like Cody orders Rex to take the left corridor (who then proceeds to turn right). What Cody actually says is "You take the west corridor."

The music that accompanies the brawl between Rex, Cody and Slick is a variation of the speeder chase from Episode II.

Originally, Sergeant Slick was supposed to have red hair, but when rendered, the standard dark hair model was used. This actually helps him blend in more rather than stand out as a suspect.

Clone pilot Hawk was originally in the Clone Wars movie, called by Anakin for an extraction from the B'omarr monastery on Teth. That sequence was cut from the movie -- which may have ended up saving Hawk's life, because as it originally played out, that rescue gunship would have been shot down by a vulture droid.

The clone barracks include pin-ups of Twi'lek girls and Naboo handmaidens.

Sketch has an Aurebesh "S" tattooed on his brow.