No. 2: Thor: Ragnarok
Image Credit - Marvel
As shown in Doctor Strange's mid-credit scene, the Sorcerer Supreme will be aiding the God of Thunder in Thor: Ragnarok. The exact nature and extent of Steven Strange's involvement in the already jam-packed third Thor instalment is unknown. What we do know is that he will be helping Thor and Loki find Odin, primarily so he can get them off his planet as soon as possible . This is hugely exciting for both Ragnarok and Doctor Strange and should aid to further establish the character as part of the wider Marvel universe.