Analysis of information sources in references of the Wikipedia article "Treisprezece la cină (film)" in Romanian language version.
Then they saw me give the dreadful performance I gave in Peter Ustinov's Poirot film Thirteen at Dinner. I played Inspector Japp and it was the worst performance I've ever given. It was a good thing I gave such a bad performance because they went on to make a series of films with Peter Ustinov for American television. If I'd have been brilliant as Inspector Japp, I would have carried on [in that role] and I would never have been accepted to play Poirot.