A man portraying Spider-Man*was arrested on outstanding criminal warrants Wednesday after an incident in which he allegedly slugged a man near the Hollywood & Highlandcomplex, police said.It was not immediately clear what led to the altercation, which was reported about 12:30 p.m. in the 6800 block of Hollywood Boulevard. But it's the latest in a string of incidents involving movie characters and celebrity look-alikes who vie for space -- and attention -- along the tourist-filled corridor that includes Grauman's Chinese Theatre.