Before becoming a director, screenwriter, and producer, Artur Semedo enjoyed success as an actor on stage, television, and in feature films from 1949 through 1965. Semedo spent the years 1962 through 1965 working in Brazil.
| Movie | Saudades Para Dona Genciana | Barber | 1986-01-31 |
| Movie | Chronicle of Good Hoodlums | Major | 1984-03-14 |
| Movie | Impossível Evasão | 1983-10-12 | |
| Movie | Pôr do Sol no Areeiro | 1983-10-19 | |
| Movie | A Estrangeira | Nunes | 1982-02-01 |
| Movie | The State of Things | Production Manager | 1982-03-22 |
| Movie | The Territory | Wanderer #1 | 1981-09-01 |
| Movie | Donasvinte | 1979-01-01 | |
| Movie | O Rei das Berlengas ou a Independência das Ditas | Marquis of Pombal | 1978-05-09 |
| Movie | Sofia and Sexual Education | Henrique | 1974-10-01 |
| Movie | Crônica da Cidade Amada | Cláudio (episódio "O Homem que se Evadiu") | 1965-09-24 |
| Movie | O Dinheiro dos Pobres | The Teacher | 1956-06-06 |
| Movie | Vidas sem Rumo | Meia-Lua | 1956-09-10 |
| Movie | O Cerro dos Enforcados | D. Rui de Cardena | 1954-03-17 |
| Movie | Chaimite | Daniel | 1953-04-04 |
| Movie | Nazaré | Manuel Manata | 1952-12-12 |
| Movie | The Circus | Tony | 1951-10-24 |
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