Doctor Strange director Scott Derrickson recalls the single most challenging scene to film in his career, and one of the most ambitious technical feats in all the Marvel Cinematic Universe. Doctor Strange, co-written and directed by Derrickson, released in 2016, starring Benedict Cumberbatch in the titular role, alongside Chiwetel Ejiofor, Benedict Wong, Rachel McAdams, Mads Mikkelsen, and Tilda Swinton. Its sequel, Doctor Strange in the Multiverse of Madness, released last year as part of the Multiverse Saga, in which Derrickson served only as executive producer, with Sam Raimi stepping into the director's chair after the former departed due to creative differences.

https://screenrant.com/doctor-strange-mcu-movie-director-tough-filming-experience/