Due to his non-typical Italian facial features, he was often cast as Englishmen, and in the 1950s and early 60s he can usually be seen sporting a well-trimmed moustache and a monocle. Later in the 1960s, his appearance changed somewhat, either substituting his monocle for a pair of glasses or dropping them altogether, and sometimes using a comb-over or a hairpiece.
- La signora senza camelie .... Man leaving the cinema (uncredited)
1954 - Angela .... Dr. Robini (uncredited)
- La spiaggia .... Snobbish hotel guest (credited)
- Orient Express .... Man at party and tea-room (uncredited)
1955 - Io piaccio .... Board member (uncredited)
- La ragazza di via Veneto .... Fashion show organiser (uncredited)
1956 - Difendo il mio amore .... Pietro's colleague (uncredited)
- Una pelliccia di visone .... Pellegrini, the accountant (uncredited)
1957 - Femmine tre volte .... Roulette player (uncredited)
- Guendalina .... Lawyer (uncredited)
- Il ricatto di un padre .... Nightclub customer (uncredited)
- Parola di ladro .... British tourist in the catacombs (uncredited)
- Seven Hills of Rome .... Hotel receptionist (uncredited)
1958 - Amore e chiacchiere .... Guest at Paseroni's house (uncredited)
- Giovani mariti .... Father of the bride at first wedding (uncredited)
- Guardia, ladro e cameriera .... Party guest (uncredited)
- Napoli, sole mio! .... Impresario (uncredited)
- Racconti d'estate .... Man at diner table (credited)
- Totò a Parigi .... Insurance company employee (uncredited)
1959 - Psicanalista per signora .... Carol Crane's assistant (uncredited)
- Tempi duri per i vampiri .... Guest at hotel resort (credited as "Francesco Tenzi")
- Tipi da spiaggia .... Man at the beach (uncredited)
1960 - Gastone .... Audience member at Salone Margherita (uncredited)
- Il mattatore .... Train passenger (uncredited)
- Il mio amico Jekyll .... English commission member (credited)
- Il vigile .... Party guest (uncredited)
- Totò, Fabrizi e i giovani d'oggi .... English teacher (uncredited)
1961 - Bellezze sulla spiaggia .... Mental patient (uncredited)
- Come September .... Robert's secretary (uncredited)
- Il relitto .... The Governor (credited)
- Le ambiziose .... Hotel guest (uncredited)
- Romanoff and Juliet .... U.K. delegate to the UN (uncredited)
- Vanina Vanini .... Stagecoach passenger (uncredited)
1962 - La città prigioniera .... General Bennett (credited as "Franco Tensi")
- Sodoma e Gomorra .... Hebrew elder (credited)
1963 - Le mani sulla città .... Member of parliament (uncredited)
- Rocambole .... British diplomat (uncredited)
1964 - Queste pazze pazze donne - segment "Siciliani a Milano" .... Vismara's business associate (uncredited)
1965 - Su e giù - segment "Il colpo del leone" .... unknown role (uncredited)
1966 - 7 pistole per i MacGregor .... Harold MacGregor (credited as "Harry Cotton")
1967 - 7 donne per i Mac Gregor .... Harold MacGregor (credited as "Harry Cotton")
- La morte non conta i dollari .... John, stagecoach passenger (credited)
- OK Connery .... Auctioneer (credited)
- Questi fantasmi .... Professor Santanna (credited)
1969 - I 2 magnifici fresconi .... Friend of Vismara (uncredited - re-used footage)
1970 - Il dio chiamato Dorian .... Geoffrey Clouston (uncredited)
- "La dolce fiamma" (Published in Polvere di Stelle from May to October 1960) - credited as "George Lenz"