All3Media’s Studio Lambert is launching entertainment label Glitterbox with former TwoFour exec Cat Lawson as Creative Director. Billed as a shiny floor entertainment division, Glitterbox will have its own development staff, but will also work with the existing Studio Lambert development team and its Creative Director, Tim Harcourt. In the U.S., Glitterbox formats will be produced by Studio Lambert's LA operation run by Greg Goldman, together with the All3Media America…