The Worst Thing About Every MCU Film
4. Janet Van Dyne Is Wasted - Ant-Man And The Wasp
Because Janet Van Dyne is one of the founding Avengers members (as well as the superheroine who named the team), fans were disappointed that the diminutive Avenger only appeared as a faceless cameo in Ant-Man.
Because the sequel, Ant-Man and the Wasp, would revolve around the quantum realm that Janet Van Dyne is trapped in, you'd assume her character would have a massive pay-off.
Save for a few fleeting moments, Van Dyne only appears in the film for five minutes. Her character initiates the entire plot and yet, she's BARELY in the story! Not only that, the quantum realm is barely explored, which seems silly considering it is pivotal in setting up events in the follow-up, Avengers: Endgame.