years ago, the entrance was near Oscar's Station at the front of the park (that's where you rent strollers)
A couple of years ago they moved the entrance to down the street by Beauty & Beast...that was VERY convenient place to enter.
NOW, you have to walk way past the regular Fantasmic entrance--up to a special gate across from the entrance to Tower of Terror. Then you end up walking in kind of a back-stage area but back kind of in the direction you just walked, but near the top of the theater. You eventually actually cross the regular entrance line where they are coming in at the top of the entrance ramp, and then you continue walking across the top back of the theater. You end up walking about twice as far as the old Dining package entrance...and you definitely have to walk farther than if you came in the regular entrance. The only advantage is being able to show up 30-40 minutes before the show and be sure you have seats...but it is NOT convenient entrance. This is the entrance that they have been using...we just did this 2 weeks ago, was also there in Jan, Feb, and March of this year.