This week’s Republican National Convention is about to get a big boost of star power.

Clint Eastwood, the legendary actor/director behind the “Dirty Harry” series, “Unforgiven” and “Mystic River,” is en route to Tampa to support the GOP event, according to Townhall.com.

A well-placed Republican source tells Townhall that Oscar-winning director and actor Clint Eastwood will travel to Tampa, Florida to attend Mitt Romney’s nominating convention this week.  As the news media scrambles to identify the so-called “mystery speaker” scheduled to address GOP delegates on Thursday evening, some have speculated that the iconic Hollywood figure could fit the bill.  Our source — who spoke on the condition of anonymity — could not confirm if Eastwood is, in fact, the intriguing “to-be-announced” speaker, but stated unequivocally that the Dirty Harry star will arrive in Florida late on Wednesday or early on Thursday, and will return to southern California on Friday.