What do you think of this opening for a movie?

A man on the street holds a clown mask. Cut to two guys wearing clown masks ziplining from the window of one skyscraper to the roof of another. The men prepare to rob a bank, but one of them shoots the other and leaves him. Three other robbers storm in and start taking hostages while the guy from the roof drills the safe. One banker rebels and shoots two of the robbers before getting shot himself. The robbers start killing each other as they've been instructed to do by their employer, so they don't have to split the money. There stands one last robber who goes over to the rebellious banker and delivers an iconic line revealing that he is in fact the Joker before leaving a smoke grenade in the banker's mouth and leaving with the bus full of money.

Now compare that to this: