After an altercation over some pocket change escalates, a failed actor inadvertently takes another man hostage and must now reach the public in order to avoid arrest.

Getting there...

Is this a short? If a feature, the logline needs more meat on the bone. For instance, why is the crowd his concern when the police are minutes away? What does he do most of the time or why does this last long?

Are we supposed to root for the guy or relate to his frustration and enjoy the trainwreck? Right now it leans to the latter, but without the enjoyment part.? If we're to root for the guy, consider that he's victimized in some way.

Still not clear what being an actor does for the story. As for talentless...does he know he's talentless?

With the next adjustments, look to highlight what exactly is the hook and what exactly makes this funny.

How about this:

In order to resolve a dispute over some pocket change, a talentless actor takes a man hostage and must find a way to get the angry crowd that has surrounded him on his side.

As part of the adjustments, the next logline should avoid the question of 'If it's inadvertent, why doesn't he free the hostage asap?'