Dustin Hoffman became the latest Hollywood star to become a real-life hero, after helping a jogger who collapsed in London's Hyde Park in January.

The 74-year-old actor dialed 999 after seeing Sam Dempster collapse during a jog. Hoffman waited with the 27-year-old until paramedics arrived, telling them great job guys after they successfully revived Dempster.

I have no memory of what happened. The paramedics told me I had been saved by Dustin Hoffman. It's unbelievable, Dempster told the Sun. I want to say 'Thank you' to Dustin Hoffman. He saved my life.

But the former Rain Man star is just the latest in a slew of recent celebrity heroics. In the era of Twitter, camera phones, and 24-hour news cycles, stories have of celebrity heroism have become commonplace.

Ryan Gosling Breaks Up A Fight

Who better to break up a fight between a thief and an artist than the guy from The Notebook. Gosling, who we assume has made other movies since that chick flick, broke up a confrontation at St. Mark's Place in New York City last August.

The incident was caught on YouTube, showing a calm Gosling doing his best peacekeeper impression.

The two men faced off after a man tried to swipe a painting from an artist he apparently admired.

The guy was a fan, and so he wanted the painting so bad he had to steal it because he couldn't afford it, Gosling said of the incident during an MTV interview. So he finally steals the painting, and then he's getting his ass kicked by his hero, and then the guy from 'The Notebook' shows up and makes it weirder.

McDreamy Plays A Doctor Off-Screen

Patrick Dempsey, he of Grey's Anatomy fame, pulled Weston Masset out of his flipped-over Ford Mustang after the teen crashed his car near the actor's Malibu home.

Masset said Dempsey used a crowbar to pry him out of the car, then called paramedics, who airlifted the 16-year-old to safety.

During the ordeal, Masset asked Dempsey if he was famous.

Yeah, I'm a doctor, the star responded.


Brad Pitt Spares An Extra

The first rule of movie shoots: don't kill an extra.

Pitt kept to the code on the set of his upcoming film, World War Z. The actor stopped to pick up an extra that tripped during a massive, 700-person zombie-invasion scene in Glasgow. The maneuver stopped the woman from being surely trampled, the Scottish Sun reported.

Kate Winslet Saves Her Family, Billionaire's Mom

The Academy Award winner Winslet saved her family and Virgin Group CEO Richard Branson's mom after lightning struck the billionaire's $70 million home on his private island in the Caribbean.

The lightning, a byproduct of Hurricane Irene, set the home on fire. Winslet, who was staying at the Necker Island home, took her boyfriend and two kids out, carrying Branson's 90-year-old mother along the way.

My mother's 90 years old and, in order -- although she can walk -- in order to speed the process up, (Winslet) picked my mother up and carried her, carried her out of the house, and so Kate helped rescue my mother, Branson said.

T.I. Talks A Man Off A Ledge

Rapper T.I. was on his way to a video shoot when he heard on the radio of a man threatening to jump off a 22-story Atlanta building. The chart topper, a few days short of a scheduled probation hearing, showed up at the scene and recorded a video message that police then showed to the suicidal man, according to the Atlanta Journal Constitution.

T.I. said the video said that I was here and I was looking forward to meeting him and that no matter what's going on in life now, it gets better.

The message was apparently enough to talk the man down, who enjoyed a five minute conversation with the rapper before being carted off by the cops.