Sources connected to the hotel tell us ... the video shows the entire incident and the aftermath. Lindsay was driving into the hotel, down a ramp. The alleged victim was walking in the pedestrian path, which Lindsay had to cross.

The video shows Lindsay's car -- which is traveling at a crawl -- gets very close to the pedestrian but it's unclear if the vehicle makes contact. In fact, sources tell us ... 2 detectives came to the hotel early this morning and viewed the tape. One detective felt Lindsay's car "grazed" the back of the alleged victim's leg, but the other detective felt the car never made contact.

And it gets better. Once Lindsay clears the area and goes down a ramp, the video shows the alleged victim sprinting after her. The video shows the alleged victim does not get real close to Lindsay, and it doesn't appear that he confronted her, but it appears when he got down there he noticed it was Lindsay -- partly because she had drawn a crowd near the entrance to the club.

When Lindsay gets out of the car at the bottom of the ramp, she does not seem flustered or aware she may have hit someone.

Here's where it gets confusing. For some reason, Lindsay decided to leave the club minutes after arriving, got back in her car and left for a short time ... then came back.