rewatched candace against the universe. and got some points which I am gonna share with you. the movie was awesome and all, but the best part was that they hadn't ruined the basic elements. by that I mean they can still make a phineas and ferb episode without it being uninteresting, or weird. the basic elements were that there are two plots, in plot one there's phineas and ferb making an unreal invention, and candace wanting to bust them, and their mother being unaware of how the brothers are making something very weird. plot two is that perry the platypus stops doofenshmirtz and everything collides together making the phineas and ferb invention disappear right before the mother sees it.
see what happened? the movie had nothing less than other movies. it had humour, friendship, siblinghood (if that makes sense), evil, no purely bad character, not very silly, not very serious, unbelievable stuff, believable stuff, you know what I mean. but at the end, no-one realises perry is a secret agent, the mother doesn't realise that phineas and ferb are somehow geniuses, candace has a crush on jeremy, so nothing changed really.
and THAT, my friend, is something very important. toy story messed up with toy story 4. it ended everything. you couldn't make up some more movies, because there wouldn't be any woody, and if there was woody, there wasn't buzz. toy story mixed animation and cartoon with the real world. in the real world, people separate, people die, but that is not to be interfered with cartoons. no such thing happened in this movie.
apart from that, the whole story itself was awesome. it had science, space, secret agents, evil, what else do you want?! it also had songs that you could totally dance with. plus, the end song called "silhouettes" was just so cool and creative.
overall, it is one of the best movies I've seen.