Spinetti appeared in more than 31 films, including The Gentle Terror (1961), Sparrows Can't Sing (1963), The Wild Affair (1964), Becket (1964), Zeffirelli's The Taming of the Shrew (1967), The Biggest Bundle of Them All (1968), Can Heironymus Merkin Ever Forget Mercy Humppe and Find True Happiness? (1969), This, That and the Other (1969), Start the Revolution Without Me (1970), Under Milk Wood (1972), Digby, the Biggest Dog in the World (1973), The Great McGonagall (1974), The Little Prince (1974), The Return of the Pink Panther (1975), Voyage of the Damned (1976), Emily (1976), Hardcore (1977), Casanova & Co. (1977), Under the Cherry Moon (1986) and The Krays (1990).