Marky Mark's only good when he's allowed lots of swearing, and since this will be PG-13...

Mark Wahlberg is replacing Shia LaBeouf in the upcoming "Transformers 4," but he's going to need back up in the endless fight against the Decepticons.

Director Michael Bay announced today that little-known Irish actor Jack Reynor will be joining the mayhem in the fourth installment of the extremely successful franchise. Although his role has not yet been officially revealed, he is assumed to be playing the co-leading role as the boyfriend to the daughter of Wahlberg's character. IN other words, it's a huge break for the young actor.

Bay posted the news on his site, saying, "I just hired a great new actor for Transformers 4 to star against Mark Wahlberg. Jack Reynor, he is an Irish kid that came to America with 30 bucks in his pocket. Pretty ballsy. Seriously who does that? Anyway I spotted him in a great little Irish movie 'What Richard Did.' This kid is the real deal."

He also reiterated the fact that the upcoming fourth installment is picking up where the first three left off "'Transformers 4' is not a reboot," he insists. "That word has been floating around on the net. This movie takes place exactly 4 years after the war in Chicago. The story makes a very natural transition, and reason as to why we have a whole new cast. This 'Transformers' will feel very different then the last three. We are embarking on a new trilogy."

"Transformers 4" is set to open June 27, 2014

Wahhh, i wonder what the story would be like since megatron already dead, i dont want him to be back alive again, like optimus said he's a piece of trash, junkyard. (after being revive in 2nd transformers) lol. so who's the villain eh?

and and to read that jack reynor will be playing wahlberg daughter's boyfriend is just weird, i mean wahlberg with a daughter? i never seen him act that old before. haha.

cant wait for this!

"Transformers 4" has started production on location in Monument Valley in the Navajo Nation near the border of Arizona and Utah. And this is our first look at the film's newly-designed Autobots. Pictured here: A 1,200-horsepower Bugatti Grand Sport Vitesse worth more than a whopping $2.4 million!

Which Autobot could this green machine be? It's a special race-inspired C7 Corvette Stingray, based on Chevrolet's upcoming 2014 production car — and the first look is seen here on the set of "Transformers 4" near the border of Arizona and Utah.