ɪnðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z, bˈʌmstɛd bɪɡˈæn ɐ lˈɛŋθi kəlˌæbɚɹˈeɪʃən wɪð dᵻɹˈɛktɚ dʒˈɔːɹdʒ ɹˈɔɪ hˈɪl ðæt wʌz hˈaɪlaɪɾᵻd baɪ ðə stˈɪŋ nˈaɪntiːnhˈʌndɹɪd sˈɛvənti θɹˈiː.
In the 1970s, Bumstead began a lengthy collaboration with director George Roy Hill that was highlighted by The Sting (1973).