His most successful tie - in was the first of the Man From U.N.C.L.E.
Avallone has been prolific at writing movie and TV tie - ins , more than two dozen , beginning with 1963 's The Main Attraction .
Avallone 's most successful tie - in was the first of the Man From U.N.C.L.E.
Avallone has been prolific at writing movie and TV tie - ins , more than two dozen , beginning with 1963 's The Main Attraction .