How to Add Hollywood Special Effects to Your Videos https://nyti.ms/2Vuj9ux

With your smartphone, inexpensive software and a bit of cloth or paper, you can make your own “green screen” movies.
The New York Times Technology Video Recordings, Downloads and Streaming, Mobile Applications, Desktop Computers, Movies
By J. D. BIERSDORFER from NYT Technology
https://nyti.ms/2Vuj9ux