Kevin Smith coined the idea of in-theater audio commentary, going to see a movie at the theater, and after having downloaded onto one's iPod a podcast of an audio commentary, returning to the theater a second time to watch the movie while listening to the commentary at the same time.
Its main use in the United States is as large filler (along with peanuts as small filler) in most containers of mixed nuts. Filberts are sometimes grown in orchards for the nuts, but much less often than the common hazel. The purple-leaved cultivar Corylus maxima 'Purpurea' is a popular ornamental shrub in gardens.ts main use in the United States is as large filler (along with peanuts as small filler) in most containers of mixed nuts. Filberts are sometimes grown in orchards for the nuts, but much less often than the common hazel. The purple-leaved cultivar Corylus maxima 'Purpurea' is a popular ornamental shrub in gardens.
All three species are 3-4 year crops. E. purpurea yields herb (above-ground foliage) as well as roots. The foliage can be cut in years 2, 3 and 4, and roots harvested in the last year. In Europe, only the herb of E. purpurea is used by some manufacturers. E. pallida and E. angustifolia are both grown for roots only, although there is no reason why some herb could not be harvested from E. pallida.