6360 W. Sunset Blvd
After you pass Paramount, turn right on Gower. As you follow Gower to Sunset Boulevard, you'll get good views of the Hollywood Sign straight ahead. Turn right onto Sunset to reach the Arclight.
I don't often recommend that people go to a movie while on vacation. After all, it's something you could do just as easily at home. However, the ArcLight is such a refreshing change from the ordinary that it's well worth a stop. You'll find a cafe in the lobby, chicken and pesto sandwiches at the refreshment stand, assigned seats and ushers to help you find them. Projection and sound are said to be the best in the Los Angeles area.
The Cinerama Dome, a geodesic-domed theater was built in 1963 to show the then-new "Cinerama" films. Cinerama is a wide screen process which projects images from three synchronized 35 mm projectors to create a wider view than is possible otherwise. The original equipment is still in place, and the main auditorium can also screen 70mm films as well as modern ones.
If you want to see a movie at the Arclight, you can check their schedule online.