While filming Willy Wonka & the Chocolate Factory (1971), he didn't have a dressing room at the studio. Instead he would change at his house, which was conveniently nearby, and walk to the studio for filming.
During the filming of Willy Wonka & the Chocolate Factory (1971) he didn't speak English very well, as German was his native and only language. Some of the crew members would have to coach him on his lines.
He was very much interested in continuing his acting career following the success of Willy Wonka & the Chocolate Factory (1971), but his father made him stop acting so that he would finish his education. He now owns his own accounting firm and works as a tax accountant in Munich, Germany.
Owns his own office for tax accounting and wirtschafsprifer in Munich.
Michael is an accountant in Munich. [January 2002]