This improv game is in the following improv game categories:
Have everyone walk around leisurely, and hand 2 players the bottles. The idea is to make eye contact with someone. As soon as a player has eye contact with a player with a bottle, the bottle is thrown. If at any point the bottle is dropped, both the thrower and the receiver lie down on the floor and shout 'My Fault' as loud as possible. After that, one of them picks up the bottle and the game continues.
Side coaching: tell the players to take risks, to try and make eye contact with a player at the other side of the room. Explain that everybody 'involved' in missing the bottle can take the blame. It's great fun and great energy when after a missed bottle everyone hits the floor, happily shouting 'my fault'.