Honestly, looking back, it was one of the better TV shows turned movies. The plot is surprisingly thoughtful, from everyone discovering Perryโs secret to the complexity of growing up as seen by both Candaces. The emotional bond between the boys and Perry, especially when they chose to sacrifice the thrill of remembering the adventure for Perry, still had me tearing up years later.
If you've watched any episode of Phineas and Ferb ever, I would recommend this movie. If you've watched all episodes, you'll get a lot more easter eggs :)