Phil puts the hotel room key on the bar and then picks up the key belonging to the older lady. She later gets into her room with no problem. She shouldn't have been able to get in as she ended up with Phil's key.
Incorrect: She could have gone to the reception for help.
Incorrect: She could have gone to the reception for help.
When Phil is laying on the bed waiting for Claire the bottle is open with his thumb over the cork in the next scene it's completely unopened and then in the next scene it's back to being open with Phil's thumb over the cork again so that it can pop when the old lady walks in.