Personally, I think there would be a few ways to turn this around, but you have to be willing to think outside the box. With e-commerce being so easy to shop from remote locations, you have to make this a destination location. In other words, you have to make people want to go there.
So for the movie theater, instead of showing current releases try showing older movies so that newer generations can see them on the big screen. Or turn it into an independent movie house like the Enzian (
http://www.enzian.org/) in Maitland, FL which would give up and coming movie makers a place to show their films.
As far as the mall, you can continue the mall/retail route and try to lure smaller businesses in there, such as start-ups and other mom & pop entrepreneurs who want to try their hand at opening their own business. if the retail way won't work, turn it into a medical mall with doctor's offices, a medical supply store and a pharmacy.
There are just too many things that can be done when you think outside the box. Yes, it's a mall but when malls fail they can have a new life. Look at the FSCJ campus on Baymeadows....old mall, now it's a college campus.