Lindsay Lohan -- VIDEO FOOTAGE of the Alleged Pedestrian Strike

TMZ has obtained surveillance footage showing the moment Lindsay Lohan allegedly struck a pedestrian in front of a NYC hotel ... and one thing is clear -- NOTHING IS CLEAR.

The footage begins as Lindsay's black Porsche is in the street, attempting to pull in to the hotel parking garage ... which was blocked by several pedestrians.

Seemed like Lindsay was making a slow entrance ... but a man in a plaid shirt can be seen walking in front of the car ... and she MAY have made contact with him. It's hard to tell.

After the alleged collision ... the man (who claimed he was injured) can be seen SPRINTING into the parking garage in an effort to catch up to Lindsay's car.

TMZ broke the story ... Lindsay was later arrested for leaving the scene of an accident.

The alleged victim claims he was hospitalized for injuries sustained in the alleged impact ... and says Lindsay reeked of booze at the time of the incident.