10 Terrifying Horror Movies Starring MCU Actors

10. Robert Downey Jr./Annette Bening - In Dreams

If you only know Dreamworks as the lovely studio responsible for funny ogres and charming animation, then you clearly missed this one. In Dreams is a terrifying movie that doesn't overstay its welcome and packs a ton of scares into its runtime. Additionally, like the contrast to traditional Dreamworks pictures, viewers are treated to a terrifyingly out of character performance from the always heroic Iron Man in this one.

The film follows Claire Cooper (Annette Bening) as she discovers that her frightening dreams have a real-world connection to a serial killer. She attempts to understand her visions and intends to use them to stop this serial murderer from taking more lives, all while her quiet life collapses around her.

While there are a few drawbacks that keep the title from living up to its full potential - like poor pacing and an overreliance on melodrama - it is a film that will keep you engaged thanks to its incredible creativity. The dream sequences are mesmerising, and as they begin to bleed into Claire's real life, it becomes all the more frightening.

Downey Jr. brings a fantastic performance here as the killer, he's clearly having the time of his life in the role. While he it takes some time for him to appear, you can still get your MCU fix, as the leading character is played by Captain Marvel's very own Dr Wendy Lawson, who really delivers on the intense decline of Claire's dwindling sanity.