Looking tough with his shaved head, Jake Gyllenhaal brought out the big guns to portray a cop on the set of his new flick "End of Watch" in L.A. the other day.

Jake is definitely bulletproof.

While in Hawaii for his Dad's wedding this weekend, super sexy Jake Gyllenhaal cooled off his ridiculously hot and buff body at the beach in Oahu.

We're told Jake's sister Maggie Gyllenhaal was there too.

Jake Gyllenhaal and Michael Pena witnessed the aftermath of gang violence Wednesday night, as they rode with cops who responded to a bloody gang shooting in South L.A. 


The two actors, who were prepping for their roles in a new movie, watched as paramedics treated an alleged gang member, who suffered grazing bullet wounds on the lip and arm.

Jake Gyllenhaal was the victim of a serious Guy Code violation during a screening of his movie "Source Code" at SXSW -- when a guy tried to take his picture ... in the bathroom!


We're told Jake was in the restroom, doing his thing, when a guy snapped off a pic. Not cool!

Although there are rumors a fight went down, we're told Jake simply talked to the guy -- who understood his mistake -- and eventually the pic was deleted.

Guess the guy realized it was a sh*tty thing to do.

Jake Gyllenhaal went cruising with rumored girlfriend Taylor Swift in L.A. on Thursday.



The 29-year-old is definitely the one in the driver's seat in this relationship.

There's been much debate on whether Jake Gyllenhaal's penis makes a cameo in "Love & Other Drugs" -- so we asked his (Jake's) co-star, Josh Gad, to solve the mystery.



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Sexy stud Ryan Gosling, 30, and handsome hunk Jake Gyllenhaal, 29, made every one swoon at the same event in L.A. on Thursday.


Question is ...

After being spotted getting cozy at a coffee shop in Tennessee this weekend, rumored couple Jake Gyllenhaal, 29, and Taylor Swift, 20, enjoyed another intimate cup of joe at the Frothy Monkey in Nashville this morning.



Sources tell us the duo have been in the past several mornings and "looked like they were more than friends" ... whatever that means.

Jake & Tay really know how to get their hearts racing.

Jake Gyllenhaal had great seats at last nights Lakers vs. Celtics game -- but by the way he stretched his neck to check out this taut tush ... it seems dude was more interested by the action in the stands.

Reese Witherspoon's ex-husband Ryan Phillippe and her ex-boyfriend "Prince of Persia" star Jake Gyllenhaal are two very healthy young men.



Question is ...

While at the Lakers game last night, newly single Jake Gyllenhaal kept his eyes planted firmly on the, er, court.



The 29-year-old stud is a baller.