Kanzenshuu

Well Shenron is only as strong as the God who "created" him, it sounds entirely too convenient to be able to have his wishes affect another time, especially an alternate timeline.

2. If you mean Future Goku, he's already dead, and no one mentioned the Time Chamber. If you mean Present Goku, Trunks ...

Vegeta and Tenshinhan never spoke as far as I remember.

The thing is, with all that extra Ki that USSJ brings, can they even do anything with it? We have Trunks trying to punch Cell into submission, and Goku saying he's stronger as USSJ, but can they preform a decent energy attack without falling apart?

Like can USSJ Goku use all that extra power to ...

Chapter: 507 (DBZ 313), P12.4-5
Context: after Goku and Vegeta revert Boo back to regular evil Boo
Goku: “Hehhe~~eh! With this, Boo’s power should have fallen significantly! We’re almost there! See, see: the size of his ki is completely different than before!”
Vegeta: “Alright! Let’s blast out of ...

The whole movie was meant to lure Vegeta into a trap. Once Broly saw Goku (did he even recognize him by voice? I don't recall Baby Broly studying his face), all that was thrown out the window, when Vegeta's family contributed to Broly's insanity as well.