From the album Wikipedia page.
" According to journalist Michael Housego of the Daily Sketch, disagreements between Harrison and Lennon descended into violence with them allegedly throwing punches at each other. Harrison denied this in a 16 January interview for the Daily Express, saying: "There was no punch-up. We just fell out." After lunch, Harrison announced that he was "leaving the band now" and told the others "see you round the clubs".
This is probably the reason for this moment in the trailer presumably￼￼ after they relocated to the Apple building: