The pressure's really piling up on Greg Heffley. His mum thinks video games are turning his brain to mush, so she wants her son to put down the controller and explore his "creative side".

As if that's not scary enough, Halloween's just around the corner and the frights are coming at Greg from every angle.

But then Greg has an idea. Maybe he can get his mom off his back by making a movie . . . and even become rich and famous in the process? Or will doubling down on this plan just double Greg's troubles?