ɪnðə lˈeɪt nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi, ɡɹˈoʊdən wʌzɐ kənsˈʌltənt fɔːɹ ˈɑːlɪvɚ stˈoʊnz nˈaɪntiːnhˈʌndɹɪd nˈaɪnti wˈʌn fˈɪlm dʒˌeɪˌɛfkˈeɪ, ˈiːvən ɐpˈɪɹɪŋ ɪn tˈuː bɹˈiːf kˈæmɪˌoʊ ɹˈoʊlz: æz ɐ pˈɑːɹklənd dˈɑːktɚ wˈɜːkɪŋ tə sˈeɪv ðə pɹˈɛzɪdənt ænd æz ðə kˈoːɹtɹuːm pɹədʒˈɛkʃənˌɪst ʃˈoʊɪŋ ðə zˈæpɹuːdɚ fˈɪlm dˈʊɹɹɪŋ ðə klˈeɪ ʃˈɔː tɹˈaɪəl ɪn nˈuː ˈɔːɹliənz.
In the late 1980's, Groden was a consultant for Oliver Stone's 1991 film JFK, even appearing in two brief cameo roles: as a Parkland doctor working to save the President and as the courtroom projectionist showing the Zapruder film during the Clay Shaw trial in New Orleans.