Bringing back the ancient double feature concept and adding 3D to two favorite movies SHOULD have been a good idea., BUT for my 4 year old grandsons, it was a failure.
Movies: Excellent
3-D: Not particularly effective and definitely not impressive ...The twins had never seen anything in 3D before, and if you mention 3D now, there would be little response and definitely NOT a "Cool!". They watched most of the movie without the "one size fits all" glasses with no problem.
Double-feature concept: Tooo long! As much as the twins like Toy Story 2, they did NOT want to stay for the second movie (10 minute break or not)! Old GrannyGG here WOULD have stayed if the twins had wanted to--they didn't! It was too long for even me!