Brace yourself if you're not prepared to feel old, but it's been more than two decades since everyone's favorite pint-sized detective hit the big screen. The movie was a big milestone for fans of the classic book series, but also because it was the first film put out by the Nickelodeon Movies production company. But - aside from eating lots of mayo and tomato sandwiches - what have the cast been up to in the last 20 years?Gregory Smith - SportSmith played one of Harriet's best friends, but you might know him better for leading roles in Small Soldiers