Tonight is the premiere of For Greater Glory at Grauman's Chinese Theatre! Stars (Andy Garcia, Eva Longoria, Oscar Isaac, Bruce Greenwood and Peter O'Toole) are all scheduled to be in attendance and start walking the red carpet sometime between 5:00 p.m. and 6:30 p.m. I'd recommend arriving earlier if you want a good spot for seeing celebrities as they arrive.
Grauman's Chinese Theatre is located at 6925 Hollywood Boulevard and directions can be found here. You can park at the Hollywood & Highland Center for 4 hours for $2.00 after validation (which you can get at the information center without having to purchase anything). For further information, please call Grauman's Chinese Theatre at (323) 461-3331.