Catfish
USA 2010

Yaniv Schulman as Himself (as Nev Schulman)

https://dereferer.me/?https://dereferer.me/?http://www.imdb.com/title/tt1584016/

IMDB: User comment:

...I could not take my eyes off this film and Yahniv Schulman is a captivating and natural actor...who still wears his retainer at bedtime! What a nerd! How adorable!...

Can see in the trailer:
https://dereferer.me/?https://dereferer.me/?http://www.imdb.com/video/imdb/vi769787417/