In the end of the movie when Preston is being chased by bad guys, they are all up in the house and Preston escapes by going down the slide leading to the pool. In the very next scene, Preston just hits the water of the pool and the guys that were in the same room with him upstairs had gone down the stairs, outside, and too the pool, in the exact same amount of time that it took Preston to go down the slide. Dang those guys must be fast.