Bill Cosby's cartoon creation goes real world in this feature-length             adaptation of the 1970's animated television series. SNL star Kenan Thompson     plays the rotund leader of a gang of Philadelphia teenagers who leap through a   TV screen to lend assistance to a lonely girl (Kyla Pratt). Their time in the  real world is limited, however, and the gang must hurry to complete their      mission before their colorful clothes fade completely.  Features plenty of     laughs, musical sequences, and a cameo by Cosby himself.                         Joel Zwick---USA---2004---93 mins.