Nas has appeared in a number of movies like The Departed, Blood Diamond, Charlie's Angels: Full Throttle, Rush Hour 3.
As of June 2012, he has appeared in 15 films.
not entirely
Whilst 50 Cents is mainly known for his rap music, he has appeared in numerous movies and TV shows. Movies he has been in include 13 and Gun. TV shows he has appeared on include The Simpsons and Entourage.
Stephen King has only appeared in seven theatrical movies [as of April 2017] so not counting TV series & mini-series there are hundreds if not well over a thousand movies he had not appeared in since he became well known.
The cast of MTV at the Movies - 1991 includes: Pip Dann as Herself - Presenter
The cast of Tito medu nas - 1962 includes: Josip Broz Tito as himself
The cast of Nas prijatelj Pepi - 1968 includes: Dragan Nikolic Bozidar Stosic
The cast of Tito megju nas - 1953 includes: Josip Broz Tito as himself
The cast of Tak jest u nas - 2012 includes: Martyna Glowacka
The cast of Vida nas mareas - 2000 includes: Suso Lista Luis Zahera as himself
The cast of Nas Mija Aleksic - 1995 includes: Mija Aleksic Feliks Pasic as himself
The cast of Nas Quebradas da Vida - 1977 includes: Norma Bengell Elza Gomes
The cast of Nas chetvero - 1972 includes: Uldis Dumpis Bulat Kalymbetov Alfred Videnieks Roland Zagorskis
The cast of Prostor Izmedju Nas - 2013 includes: Tamara Krcunovic as Hana Milos Timotijevic as Ivan
Nas goes by Nasty Nas, Nas Escobar, and Nastradamus.
The cast of Skazanie o nas s Evgeniey - 2011 includes: Lyudmila Kruglova Aleksandr Topuriya
The cast of Time Is Illmatic - 2014 includes: Nas