SAN DIEGO (CBS 8 / CNS) - Comic-Con International's annual preview night, in which the pilots of three new Warner Bros. television programs will be screened at the Convention Center, is Wednesday night.

The shows are:

-"Alcatraz," a drama from J.J. Abrams on the infamous prison that will premiere on Fox at mid-season

-"Person of Interest," also from Abrams, a CBS program about a former CIA agent who teams up with a billionaire to prevent violent crime; and

- The Secret Circle," a show headed for the CW network about a girl who discovers that she's a witch and is part of a secret coven, and that the result of a centuries-old battle between good and evil comes down to her.

The preview night will also feature a screening of "Supernatural: The Anime Series," which will be distributed on Blu-ray, DVD, on-demand and download.

The television and film industries have latched onto Comic-Con as a marketing tool in the past few years, attracting actors, actresses and studio moguls to the event. Movie producer Steven Spielberg will be making his first Comic-Con appearance this year.

Preview night events, and the four-day convention are sold out. Only those with four-day passes that include the preview night option will be admitted.

Meanwhile, for those attending the event, the MTS revealed Wednesday morning special trolley cars and a four day pass just for Comic-Con.

"We've got a special commemorative pass for people that will be sold at Qualcomm, Fashion Valley, Hazard Center, America Plaza, Convention Center and here and this will give people four days of rides Thursday Friday, Saturday, Sunday for 15 dollars," explained Paul Jablonski the CEO of MTS.

Starting Thursday, the Qualcomm Stadium parking lot will be open with 10,000 spaces for people to park and ride to Comic-Con.

Special trolley service will run daily from 7 a.m. to 11:30 p.m. during the pop culture event.

Comic-Con is expected to draw 126,000 people to the Convention Center through Sunday.