Exactly 50 years ago this June, Willy Wonka and the Chocolate Factory hit theaters and became a wonky, whimsical (cautionary) tale of finding the sweetness among the sour. But its star Gene Wilder had one bitter-tasting word to describe child star Paris Themmen: brat. In the 1971 film, Themmen played Mike Teavee, the television-obsessed child with the convenient aptronym for a surname. He was also the youngest among his cohorts, Peter Ostrum, Julie Dawn Cole, and Michael Bollner. Apparently, the age difference showed in his behavior. Paris Themmen was the youngest and most mischievous WILLY WONKA AND THE CHOCOLATE FACTORY, (Back Row L-R), Michael Bollner, Ursula Reit, Leonard Stone, Gene Wilder, Roy Kinnear, (Front Row L-R), Denise Nickerson, Julie Dawn Cole, Nora Denney, Paris Themmen, Peter Ostrum, Jack Albertson, 1971 \/ Everett Collection In Willy Wonka and the Chocolate Factory, all of Wonka\u2019s young guests cause trouble in their own way, whether by eating from a forbidden chocolate river or even trying out some gravity-defying beverages. But among the child actors themselves, Paris Themmen seems to have been the actual troublemaker. RELATED: \u2018Willy Wonka & The Chocolate Factory\u2019 Cast Then And Now 2021 Themmen, now 62, says he can \u201ccorroborate\u201d claims that call him a \u201chandful\u201d and \u201cnotorious troublemaker on the set.\u201d Indeed, \u201cI was younger than the others,\u201d he offers as explanation. \u201cI was 11, they were 13 and was naturally just sort of more high-spirited and rambunctious.\u201d This self-awareness is probably helped by Wilder being unabashedly honest about his views on the then-child actor. Gene Wilder weighed in with no filter Paris Themmen left an impression on Gene Wilder \/ Everett Collection Stamford, Connecticut\u2019s Avon Theatre played host to a fundraising event celebrating the anniversary of Wilder\u2019s Silver Streak (1976). There, it also hosted a surprise reunion between former co-stars Gene Wilder and Paris Themmen, as Themmen also attended. \u201cI sat at the back of the room and he gave his commentary,\u201d he recalled, \u201cand then I went up to the front of the room afterwards with my poster in hand. I said, \u2018Hi, Gene, how you doing? I\u2019m Paris Themmen, I was Mike Teavee in \u2018Willy Wonka.'\u201d Wilder responded candidly, \u201cOh you were a brat!\u201d At that, Themmen admits he \u201cflashed all the way back 50 years, or 40 years at that time, and said, \u2018Well, I\u2019m 50-something now and maybe not as much of a brat.\u2019 And he signed my poster, \u2018To my favorite brat.\u2019\u201d They both definitely took all that in stride!