Marvel movie fans are well aware that the properties always include nods to those that have come before and those yet to be. If you’ve seen “Doctor Strange,” you’ve no doubt been wondering just how the movie connects to the rest of the Marvel Cinematic Universe. Here are four of the most interesting potential connections provided by Easter eggs in the film.

Those prospective patients

Early in the film, Dr. Strange drives to a speaking engagement and receives a call detailing patients to consider. Before the film’s release, both executive producerKevin Feige and director Scott Derrickson made it clear that these weren’t other Marvel characters the audience should be concerned with, but that might not be the case.

The first patientis a military man who finds his spine damaged due to an accident in experimental armor. This nod made it into a few of the trailers for the film, and fans debatedwhether or not that could be Colonel Rhodes (War Machine), who was injured in “Captain America: Civil War.” Given that Dr. Strange has an award in his home dated for 2016, it seems likely that this film is set not long after those events, making it a nod to Rhodes rather than early attempts at recreating Iron Man armor.

The last patient is a woman who has an implant in her head to help manage her schizophrenia, but she’s struck by lightning. A new interview with Entertainment Weeklysaw Scott Derrickson playing coy when asked if it might turn out to be a nod to Captain Marvel.

He refused to give a concrete answer, though her origin story is being changed for the films from her comic book one -- which involved being struck by an energy bolt and having powers transferred to her.

Landmark buildings

Avengers tower gets a spot in the skyline, which shouldn’t be a huge surprise.

If anyone is still trying to nail down a timeline, Avengers Tower instead of Stark Tower puts the film sometime after the first “Avengers” movie.

A second building is seen though during one of the reality bending effects sequences -- Roxxon. Roxxon has been a part of the MCU since the very beginning.

A rival company to Stark Industries, it deals in energy and experimentation. Recently, the company popped up in the now cancelled “Agent Carter” and in the last episode of “Agents of SHIELD.” In fact, the company owns the smaller Isodyne Energy, which was performing experiments that have become central to the Ghost Rider storyline, which indicates the MCU might not be done with the company yet.

The Book of Cagliostro

Not exactly anEaster egg since its presence kicks off much of the conflict in the film, but it’s the book’s backstory that is most interesting.The Italian sorcerer Cagliostro created the book and its focus ison spells to manipulate time, but he also studied anothercalled the “Book of Sins,” which is also known as the Darkhold.

That book recently got itself a big storyline on “Agents of SHIELD.”The “Book of Cagliostro” was also one of a set of six locked books in the film, all with an emblem on their covers. With a connection to an Infinity Stone revealed, this could be leading to each of the prominent mystical books having a corresponding stone in the future.

Tina Minoru

Before the film's release, it was revealed that Linda Louise Dunn would be playing Tina Minoru, though the character is only seen for about 15 seconds and she’s never mentioned by name. When she’s seen, preparing for a battle, she’s carrying a staff with an open circle on the end. That staff, the Staff of One, has a particular set of magical properties in the comics in that it can bring any spell to life, but only once.

Why so interesting? Tina Minoru is the mother of Nico, a character at the center of the “Runaways” comics, and a story which was recently greenlit by Hulu to get its own series. While Tina’s presence might just be an Easter egg, her staff becomes Nico’s, and we’ll likely see it again.

You can catch all of these Easter eggs, and plenty more, in “Doctor Strange,” in theaters now.

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