Help finding composer of a piece

[bigmcell]

Ok I'm not much of a pianist at all, but I admirer pieces and love to listen to them. HOWEVER, if any1 has watched the movie Big, what is the name of the piece they play on that floor keyboard. Ive searched forever for it. Any help is appreciated thanks  

[guitarwolf]

I think its called chopsticks but I'am not really sure.