Smosh: The Movie (2015)
Remember the two kids who made a silly video of them dancing to the Pokemon theme song that went viral on YouTube years ago? In case you haven't heard of them since, they've basically built their careers on this. They make parodies of random stuff. Some of them are quite funny, some are just the essence of lameness. They've clearly used up their good ideas over the years. They do, however, manage to maintain a pretty numerous audience and so, they've made a movie because that's what internet celebrities do these days.
It's a simple "going back to the roots" kind of story. Anthony wants to alter the embarrassing video of him from high school in which he falls down after attempting a flip while singing the Pokemon theme song... and the microphone ends up in his butt somehow. To that end, he goes inside YouTube via a portal shown to him by the villain, Mr. Youtube himself, the CEO of YouTube. In the process he learns that he has to go back to being his former self (a quirky nerd) to impress his to-be girlfriend. Hilarity ensues.
...Or does it? The idea might not be anything especially original but if executed right, it could at the very least have been an average comedy. However, the script appears to have been put together from people's fanfiction. The jokes are terrible, the dialogues are incredibly fake, there's plenty of unnecessary repetition and there are so many holes in the story itself, I'm beyond caring for it.
Smosh: The Movie is a perfect explanation for why they aren't quite as popular anymore. They can make good content. Just not every time. And this time they produced garbage.