The Hunger Games.
A famished family push through the Super Voyager carriages, crammed with people & baggage; only to discover the snacks vending machine is empty.
Then, at every station stop, they fruitlessly try to force out of the train doors, to the station shop and back to the train. It's all in vain.
Four hours later, their hunger-wracked bodies tumble off the train - to discover that their final 30 miles will be sat on a rail replacement bus.