What is a thriller?

In my opinion a thriller is something that thrills you, but keeps you interested in what you are watching, compared to a horror which I find is more supernatural or gory, both genres are enthralling and personally I like the Scary gory horror films to a thriller, however in some cases

I prefer thrillers for instance one of my all-time favourite films is 'the birds' by Alfred Hitchcock which is a thriller.Thrillers are known to include excitement, suspense, uncertainty, and nerve-wracking tension.

These are all sub-genres to Thriller
- Action
- Conspiracy
- Crime
- Disaster
- Drama
- Erotic
- Legal
- Medical
- Political
- Psychological
- Spy
- Techno