Rob Gronkowski -- He's Taking Over Hollywood!!! (VIDEO)

Ron Gronkowski is clearly the biggest star in Hollywood in a physical sense, but he's becoming king of the night life, too.

Gronk was leaving 1OAK Saturday night when our photog asked him about his foray into movies, playing Officer Weadon in the upcoming "You Can't Have It."

We see lots of stars on the Sunset Strip, and no one fills a room like Gronk.