Touring the Movie StudiosThe backlot tour at Universal Studios is fun for what it is, if you want to go behind the scenes at a real, working movie studio, try a different studio. At several of the working studios in and around Hollywood, you can reserve a guided tour that will take you onto the back lot, behind the scenes and often onto sound stages and sets. This is the way to see how the real Hollywood works, at least a little.
Pros and ConsGoing behind the scenes is fun, but these are working studios that (for the most part) aren't open on weekends - and the real work always takes precedence over the tour, so some sets may be off-limits when you visit. Don't expect to see a celebrity on your tour (although some do) and for some of them, be prepared for a lot of walking.
More About Hollywood Studio ToursIf you're convinced you want to go, check out the Go Los Angeles Card, which includes some studio tour admissions.
If you need more information, check the Complete Guide to Studio Tours. It will give a summary of each one, what to expect, when to go and how to get reservations.