Moutarde van Sonansee explained

Moutarde van Sonansee is a 1959 Dutch comedy film directed by Toon Hermans.

Cast

Gerard Doting as Notaris, [probably someone not as important as Dineke Poster playing Girl in Background]
Henk Haye as Boekhouder
Toon Hermans as Jeep Moutarde
Phyllis Lane as Dr. Helen Ford
Linda Op 't Eynde as Lilly
Johan te Slaa as Worstfabrikant
Swen Smeele as Meneer Plu
Mary van den Berg as Juffrouw Duif
Jan van der Horst as Pastoor
Kees Verkade as Vriend van Lilly
Dineke Poster as Girl in Background
Lia van Kemenade as Other Girl in Background