Watch as Carrie Fisher slaps Oscar Isaac over 40 times in #TheLastJedi gag reel! https://t.co/mm4Hh4lV5Opic.twitter.com/LkGtlGye7t
— Entertainment Tonight (@etnow) March 27, 2018
The full gag reel can be found on the Blu-ray release of Star Wars: The Last Jedi, and contains behind-the-scenes stuff and deleted scenes that didn't make the final cut.
Sources: SYFY WireThe Entertainment Tonight tweet