Since someone already answered the question about the transportation, I'll add some other comments about visiting here.
I'm not sure what you hope to see in Hollywood but it isn't anything like you would imagine. You aren't going to run into any movie stars in Hollywood. It is pretty run down and not the safest place anymore.
What is your goal? Shopping? Seeing Celebrities? Seeing mansions? If you can let us know what you want to see it would help.
If you are hoping to see some celebrities, stop by The Ivy restaurant at 113 N. Robertson Blvd in Los Angeles and you will trip over the stars.
http://local.yahoo.com/info-20435557-the…
If you want to see where the stars shop, go to Rodeo Drive in Beverly Hills
http://rodeodrive-bh.com/index2.html
Are you interested in beautiful beaches, tourist attractions such as Disneyland, restaurants, big shopping malls or just scenery?