"If I can't feel anything for the people in the film I just switch off.

This movie had me entertained from start to finish."

Exactly. If you don't feel anything then it's a big struggle to stay awake.
Sometimes the first part of the movie is awesome, then the middle part is disappointing and the end is average. Or any combination.
Good to hear this movie is entertaining. So I will watch it.

Have you seen Tag? That's a very funny movie.