Box Office: 'Doctor Strange' Tracking Ahead of 'Ant-Man'

The movie introduces Benedict Cumberbatch as Stephen Strange, a lesser-known superhero with magical powers.

Doctor Strange is projected to open anywhere between $50 million and $75 million in its North American debut, and most box-office observers and tracking services expect it beat the $57 bow of fellow Marvel Studios movie Ant-Man, which likewise featured a lesser-known superhero.

The 14th title in Disney's Marvel Cinematic Universe hits theaters Nov. 4 and stars Benedict Cumberbatch as Stephen Strange, a famous neurosurgeon whose career is ruined in a car accident, which injures his hands and renders him unable to perform surgery. In the hopes of healing, Strange embarks on a journey that leads him to the Ancient One (Tilda Swinton), who teaches him the mystic arts.

Strange, from director Scott Derrickson, poses a challenge Marvel has faced before. It's always tricky to launch a franchise when a superhero movie doesn't feature a marquee character, although Marvel has a strong track record in this arena. Neither the first Thor ($65.7 million) nor the first Captain America ($65 million) debuted at the level of the original Iron Man ($98.6 million), but they successfully launched their own franchises, as did last year's Ant-Man. Robert Downey Jr.'s Iron Man has become one of the most bankable superheroes at the box office, but Tony Stark was also a lesser-known character when he first hit the big screen in 2008.

Still, if Doctor Strange opens below $55 million, it would mark the lowest start for any film in the MCU. (One of the major tracking services shows Doctor Strange debuting to $64 million or better, according to those with access to the data.)

Doctor Strange's tracking came Thursday, three weeks before it rolls out in theaters and ahead of Disney's final major marketing push.