I think he meant they'd be there at the normal park opening, not the early entry opening. If it IS EE you're talking about, then yes, the only things open for you do would be: Studios Backlot Tour, Muppet*Vision 3-D, and Star Tours.
If you're there at normal park opening, I would head straight for the Great Movie Ride, do that, then walk over to Star Tours and Indiana Jones, fastpass one and do the other while you wait to use the fastpass. Then walk down to the Backlot tour, and Muppets 3D. Depending on how you time it, a showing of Lights, Motors, Action! may be starting soon, so go see that as well. You'll have to check show times when you get to the park to confirm.
ToT and Rockin Rollercoaster are the major E-tickets at MGM, so if you won't be doing those, you'll probably be spending little time in lines. Beauty and the Beast is a theater show, and those are not generally hard to get into, same for Indiana Jones. The car stunt show might be harder to see, since it's new, but the theater is huge so I doubt you'd have problems.
I'd walk along Mickey Avenue, do Millionaire if you want, then into Animation Courtyard and anything there as well. I've never done any of the things in Animation Courtyard, so I can't tell you what they're like. I'd finish up at Beauty and the Beast Live. You'll probably still have a lot of the day left... I like to park hop on the boat to Epcot, do some stuff there, then head back to MGM and arrive about an hour before Fantasmic, and do that.