Marvel's 'What If...?' filmmakers celebrate the final season with a holiday event. Season 3 hits streaming December 22 on Disney+. LOS ANGELES -- 'Tis the season to Marvel! Marvel Animation's "What If ...

LOS ANGELES -- 'Tis the season to Marvel! Marvel Animation's "What If...?" is returning for its final season and filmmakers from the critically acclaimed animated series celebrated the season 3 ...