We recently covered on how to Disable the Intro Movie on PC via the config file, but apparently the PC option got an in-game option as well.
The “Skip Introduction Movie” option can be found in the “General” Settings on the PC version of Black Ops 4. Unfortunately the option is not available on Xbox One or PS4 at the time of writing.
Hopefully developers Treyarch patch this in a future update as watching the opening movie again and again can get annoying if you play the game daily.
Call of Duty: Black Ops 4 is available now on Xbox One, PC and PS4.