On June 15 (yeah, I'm late), I went to see Ocean's 13, the sequel to Ocean's 11 & 12. Again, it's the same core cast, the main addition being Al Pacino, who plays a casino owner with very little ethic and against which the Ocean's gang will get revenge, after one of their own get screwed by him.
Again, the story revolve around a complex heist, which will require the talents of the different members of the group. It's starting to be a bit repetitive, but there is new material and hooks, so I still found it quite entertaining, with a few twists and lots of humour. It's not necessary to have seen the previous ones, but it would help.
A nice movie to see if you liked the previous ones.