A character is drilling into a safe with a drill bit of at least six inches / 15cm, and has been for an extended period. When he finally achieves his goal, he lifts the drill away as if the bit had been barely touching it, certainly not penetrating it to any kind of depth.
When Sophie is locked out of the house, Kelly suggests that she (Sophie) go to the nearest neighbor and phone a locksmith. Kelly suggests this to Sophie while on the phone with her. The phone could have been used to call the locksmith.
When Sophie enters the alarm code, Kelly sees the key pad on her screen, though Sophie clearly holds the phone away from it (as one should when entering a code).
After Sophie arms the alarm, she steps out for a smoke, but the alarm does not go off. When she breaks back in through the greenhouse, the alarm does go off.
When Sophie arrives to the home for her house sitting assignment, she calls her friend via FaceTime to assist her in getting to know the layout of the home. However, Sophie never flipped the screen on her phone so her friend could see what is in front of her.