What film did you think had a good idea to it, but rubbish execution (possible spoilers)

[Soubriquet]

Watching Abigail. Thought it was going to be a good film as I liked the idea behind it. Pity it wasn’t as good as expected

Five nights at Freddy's movie.
Could've been seriously scary. Was utter crap.

I quite liked 5NAF but then again I hadn’t watched anything about it before nor played any games so went in as a complete newbie

Another Earth.

92 minutes of my life I'm never getting back.