I agree with
@Mary Jo Hollywood is much nicer in the morning / afternoon. Park at the parking structure at Hollywood and Highland. Then you are right in the centre of the best part of The Walk of Fame. The parking structure is under the Hollywood and Highland Mall. At the back of the mall there is a photo opportunity area with the Hollywood sign
Exit the mall, turn right and you are at The Chinese Theatre and Madame Tousards. Across the street is The Disney Soda Fountain and Store. Walk up from Disney to corner of Hollywood and Highland for the best souvenir shops. Have lunch at Mels Diner on Highland Avenue, then go back and collect your car.
Drive from the parking structure at Hollywood and Highland down Highland Avenue to Santa Monica Boulevard. This will bring you direct to Santa Monica, through West Hollywood and Beverly Hills to Santa Monica. Park in Parking Structure number 6 on 2nd Street. This will give you the best place to see Santa Monica. 3rd Street shopping Promenade is great for shopping, restaurants and has lots of street entertainment Santa Monica Place is the main mall and then there is the Pier.