Marvel Studios will whet the appetite of fans ready to see "Doctor Strange" by debuting 15 minutes of footage -- for free -- on October 10.

115 IMAX theaters in North America will screen 3D footage of Benedict Cumberbatch as the Sorcerer Supreme on October 10 at 7 pm, in an event titled "Expand Your Mind: An IMAX® 3D Exclusive First Look." You can reserve your free ticket here while they last. Along with a ticket, fans will also receive a "Doctor Strange" IMAX poster to take home.

Related: How Doctor Strange's Wong Differs From The Comics, According To Feige

In case you miss out on the event, Marvel released a new TV spot for director Scott Derrickson's "Doctor Strange," showing all-new footage of Strange, Tilda Swinton as The Ancient and Mads Mikkelsen as the villainous Kaecilius.

Starring Benedict Cumberbatch, "Doctor Strange" arrives in theaters on November 4.

(via The Hollywood Reporter)