Back To The Future: All The Things You Missed
Catching a Drink
When Marty enters the 1885 saloon, he orders a drink but is swiftly interrupted by Mad Dog who yells ‘hey, McFly!’ off-camera. This is actually the third time that Marty has been interrupted at a bar.
A running gag across all three films is that Marty orders a drink in 1955, 2015, and 1885 and doesn’t get to drink a single one of them. Each time, the necessary Biff will interrupt it with a chant or call.