Who built the LEGO structures for the film "Elf"? My daughter greatly enjoyed the look on my face when the guy destroyed Buddy's LEGO models in the film Elf. She wishes she had a picture of me. 

The question is: Does anybody know who built the LEGO models for the film? Was it a LUG?
According to an interview with Elf director Jon Favreau, the Lego City set was built in-house by the Rusty Smith's art department. 

The IMDB page for the movie thanks The LEGO Group for the permission to use the LEGO logo and trademarks but has no mention of any further involvement in set design.