I may have to see this movie....This John Cena is quite the hottie...
big guns

I'd go to see John Cena, as long as he is sure to take his shirt off for the entire movie!

From the Trailer it looks like Cena is trying to be the next Claude Van Damme ( the film is rated PG-13 which means plenty of violence but no nudity)

Is John Cena also or formerly a professional wrestler?

Yes, John Cena is still wrestling with the WWE.