Ari Emmanuel, the co-CEO of William Morris Endeavour - an agency that represents many of Tinseltown's stars - was apparently overheard talking about the Italian during his recent trip to watch Manchester City's 3-2 victory over Southampton.
The 51-year-old, who is believed to be the basis of Jeremy Piven's character on Entourage, was said to be "chatting animatedly" about Balotelli.
One of the 22-year-old's friends believes that he would become a huge movie star.
"Mario has charisma by the bucketload," an insider told the Daily Star. "He's a fascinating character – someone you feel would be a success at anything".
Balotelli joined the City from Inter Milan for £20m in 2010.