Towards the end when Perry, Dr. Doofenschmirtz, and the others stand by the fountain, this is a direct homage to Steven Soderbergh''s Oceans 11, complete with the same music.
Third time Perry and Dr. Doofenshmirtz carry the only plot of the episode.
Sidetracked takes place on the same day as Phineas and Ferb's Quantum Boogaloo when the boys made their metal super-structure.
Seventh episode to have just one plot.
Both the Lyla Lolliberry (Samantha Bee) and Bannister (Kevin McDonald) voice actors are actually real Canadians.