From the Daily Dot
Here lies a silly, convoluted thriller. I hope you're reading this in time to stop yourself from watching it. The Warning is a Spanish movie without a purpose and a hollow exercise: After his friend is shot at a gas station, Jon's search for the shooter uncovers a link to past tragedies at the same place. It's twisty for the sake of being twisty and the surprises land with a thud. The characterization is thin, at best, and the filmmaking is depressingly workmanlike.