Top tips for LA holiday with a teenager

[Hulababy]

We (me, DH and 14y DD) are off to the west coast US in the summer holidays.

We are flying to Vegas, and staying 3 nights there.
Then hiring a car and driving to Santa Monica for a week.
We then have 3 nights at Disney (2 actual days in the parks - one day in each)
Finally we have one night back in Vegas before the flight home.

Does anyone have any top tips and 'what not to miss' recommendations, please?

We will be going to Universal for one day during the LA week, DD is a theme park fan!

And in Las Vegas we think we may go to see Rock of Ages, and DD has suggested the CSI Experience - has anyone done it and is it worth doing?

In LA we have it suggested to do the Warner Brothers tour perhaps, and a tour of the stars homes. Any recommendations?

And in Santa Monica its been suggested to hire bikes, and we wondered about hiring Segways (we've been on them before a couple of times in Lanzarote) too - again, any suggestions or recommendations on that front?

What else should we consider doing, suitable for a 14y DD? And for us?
She's not into sitting on a beach, likes to be a bit busy, enjoys films/music/shopping, and pretty easy going overall.

Thank you.

Dh did the canyon last visit. I didn't and won't - I can't face going in a helicopter or a small plane. I'm bad enough going on a normal plane to get there!

Def want to do the roller coaster on New York New York. Dd wasn't tall enough last time!

I will look in to the filming and audience options, and yes - will be booking WB tour before we leave.

Glamourgates - pleased to hear he driving might not be too bad.

If you get GO LA passes it includes the Warner Bros tour, Movie Stars homes and Universal. Also Madame Tussaud's and other stuff. We really enjoyed going to a Dodgers baseball game, not far from Universal.

Definitely the Getty Centre - fabulous art collectionand stunning building/ views of the ocean.