It would be hell of such as nice if you could choose to "show just those with reviews" in the Your Films In Common table on a the user page of a user who is not you, like you can in the What Other Users Thought table on the film page.
Also, you really need to get around to making users able to post topics in the General section. And then you need to make a more readily accessible link to the General forum. It seems like right now the only link to it is in that box at the bottom of the Search Topics tab.