アベンジャーズ/エイジ・オブ・ウルトロン
Whedon also served as a creative consultant on the films in the Marvel Cinematic Universe leading up to "Age of Ultron". He rewrote some dialogue for ', directed the mid-credits scene of ', and suggested that James Gunn make "Guardians of the Galaxy" "weirder" after reading an early draft. Whedon said it was unlikely that he would return to make another sequel, stating that he "couldn't imagine doing this again". He remarked that not having created his own fictional universe in over five years felt wrong and intended to use the proceeds made from "Avengers: Age of Ultron" for such ventures. In January 2016, Whedon announced that he will no longer work with Marvel.