Can someone answer these questions?

"The leads of WET SIDE STORY discover that they share interests in sufring and bikes. Did that happen at some point in that movie-within-movie? If so, shouldn't BRADY know that? Why didn't he use that to get them together?"

There was a deleted scene where Brady taught Lela to surf.

"The guy in the post-credits scene had a picture of BIEBER in his phone. Why would a punk (or whatever he was) have a picture of him?"

Beliebers come in all ages, shapes and sizes.

I don't know if my answer is correct, it's just the way I interpreted the movie. They changed the movie just by being there.

for example....the biker girl (sorry don't remember her name) told her deepest darkest secret...that she never told to anyone else....she told it to Mac. This deep dark secret was that she wanted to surf. So, that changed the movie.

Mac also introduced the idea that the girls could do anything boys could do and The biker girl destroyed the machine in the light house. I don't recall how the original movie ended or if they even said.

anyhow...I just saw them as changing the movie by being there.

"How do they break into song at the end if they're back in the real world?"

I think it has a double intent: one more big singalong/dance number, and also to show that the 'movie reality' has bled over into the real world as much as the real world had bled into the film - so the appearance of the movie teens at the end makes organic sense (and I'm waaaaay overthinking this!) It also, of course, sets up a sequel with songs playing an integral part and no need to explain why at that point.

As for the leads not wanting to sing (Brady certainly does), Mack singing is an effect of the movie reality taking them over incrementally. It's, as Mack puts it, "an inefficient way to move the story along," but it's part of musical mythology - you sing without even knowing why (or probably knowing that you're doing it.) The same goes with 'real time' vs 'movie time'. As far as Brady knows, in 'reality' it's three days, but time seems to be dilated and there are sudden edits that move the action forward. Neither Brady nor Mack can be certain whether the time the action takes will be two hours or two days...or forever, since they've messed with the continuum. They might even end up at the beginning of the film again after a few hours, as if it's been rewound.

And the common interest in surfing and motorcycles between the movie leads was something that likely wasn't in the original film-within-a-film, but is just an example of a couple that was 'meant to be' (one of the sledgehammer points of Teen Beach Movie.) The film's reality had a way of getting back on track, despite Brady and Mack having invaded it.



"No fate but what we make." -Terminator II