The beginning of the movie is until reasonable. The busilis is when the series of unlikely things begins. To name just one: we have about 5 liters of blood in the body. So can a person bleeding at vital points in the body catch his breath? (It is the hemoglobin that carries oxygen throughout the body). Wait: I think I discovered the mystery: Both father and daughter carried a stock of blood hidden in their clothing.
Hollywood screenwriters: stop writing crap! Or, write it down and then throw it away instead of taking it to the screen.
On a scale of 1 to 10, my vote is 1 (very bad)