Yes. A will deals with any property that was not included in the living trust. This property may have been left out for any number of reasons. For example, property that wasn't properly transferred into the trust will be distributed under your will. Property you bought or received after the trust was created will be distributed according to your will, unless you transfer the property to, or purchase it in the name of, the trust.
A will also lets you name a guardian for your minor children and covers property intentionally left out of the trust (e.g., cars, personal checking accounts). A LegalZoom Living Trust includes a simple pour-over will for this purpose.