Kanzenshuu

I have a question about the movie broly the legendary super saiyan
you said that broly (DBZ) is from the timeline 5
so if future trunks never visited this timeline
how he was in the movie

can I know how goku (super) identifyed bojack,cooler and turles in DBH
you said that turles , bojack and cooler are from other timelines
so,how did the goku from the first timeline identifyed turles , bojack and cooler