How was the bank robbery completed?

In Now You See Me, when Morgan Freeman explains to the detective on how the Four Horseman robbed the bank, he mentions that they replaced the real money (while in the secured transport truck) with flash paper.

This does not explain how the paper in the bank got ignited, and no ignition/stimulator left in the scene as evidence.

Who/What/When ignited the flash paper in the bank on time?

There had to be some timer/delay mechanism on the platform, or something similar - but in the frames we see - there is nothing.

Best Answer

Flash Paper ignites into a brilliant flame when touched by a lighter, match or any extreme heat source.

So he could have concealed a lighter, heat device into his palm like he did with the red wine.

As for the paper money in the bank, The bank was already closed. So it wasn't necessary that the paper money was ignited at the same moment while the stage show was being done. It simply had to be ignited after the bank had closed down. What is not shown is how they managed to burn up the money - what was the source of ignition.

The only thing left there was the show ticket. We can see when the paper starts burning that there is something in the center that starts the ignition. Maybe it was hidden in the platform. enter image description here