Dudes. I had the same trouble and I'm 100% sure the issue is with the stupid 1.01 patch!
If you installed BEFORE to install the disc you will be frozen in the portal, but if you download the patch AFTER you install the disc and after you complete the introduction the game says your data is corrupted!! OMG!
I guess Disney's devs need to release another patch so solve this issue, that's for sure...
Meanwhile I'm going to play another titles.. =(
I was having the same problem and have a solution. Go to https://infinity.disney.com/ and log in to the Disney Interactive account that you created. Then click your account name on the top left and you will get a drop down menu. Click 'My Account'. Once you are here click on the right side where it says 'My Linked Consoles', in here you can click the X next to PlayStation and remove your DI account from the PSN. Now the game will work
I just disbaled my internet connection on the pS3 to play offline for now. That also seems to have worked.
Looks like it's the acct linking somehow. Guess my son and I will be playing offline until it's patched.
Update to my earlier rant - the freezing problem appears to be tied to linking with Disney account - once we bypassed that the game works just fine. Sorry folks while i am a computer dweeb - I am not a gamer - just the parent of one :-)
Hopefully this post helps others enjoy the game.