bˈɑːɹnɪt wʌz nˈɑːmᵻnˌeɪɾᵻd fɚðə tˈuː θˈaʊzənd sˈɪks bɹˈɪɾɪʃ ˌɪndᵻpˈɛndənt fˈɪlm ɐwˈɔːɹd fɔːɹ mˈoʊst pɹˈɑːmɪsɪŋ nˈuːkʌmɚ ˌɔn skɹˈiːn fɔːɹ hɪz wˈɜːk ɔnðə fˈɪlm vˈɜːʒən ʌvðə hˈɪstɚɹi bˈɔɪz.
Barnett was nominated for the 2006 British Independent Film Award for Most Promising Newcomer (On Screen) for his work on the film version of The History Boys.