In 2021, Hamm returned to the 1989 Batman film universe with the limited DC Comics series Batman '89, a direct continuation of both the 1989 film and Batman Returns.
ɪn tˈuː θˈaʊzənd twˈɛnti wˈʌn, hˈæm ɹᵻtˈɜːnd tə ðə nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi nˈaɪn bˈætmæn fˈɪlm jˈuːnɪvˌɜːs wɪððə lˈɪmɪɾᵻd dˌiːsˈiː kˈɑːmɪks sˈɪɹiz bˈætmæn ˈeɪɾi nˈaɪn, ɐ dᵻɹˈɛkt kəntˌɪnjuːˈeɪʃən ʌv bˈoʊθ ðə nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi nˈaɪn fˈɪlm ænd bˈætmæn ɹᵻtˈɜːnz.