They had a few odd moments but most of it seemed to be a fun time with lots of larking about and silliness, interspersed with songs evolving and performances being honed.
It's strange when you see them getting close to the tune or words you know, I kept thinking "oooh, you're so close!!!"
Yeah, it wasn't as portrayed but I think they all just wanted to do their own thing and it seemed to be George that was most keen to escape from the Beatles shadow (where Paul and John dominated).
Yoko didn't seem to cause much tension although she does seem incredibly clingy and just "there" all the time like none of the others wives were. If she starts doing her ... lets calling "singing", just FFWD. You'll thank me.