Is Rachel McAdams dating Jake Gyllenhaal?

BOTH have a history of dating their co-stars so it is probably unsurprising that Jake Gyllenhaal and Rachel McAdams are rumoured to be seeing each other.

BOTH have a history of dating their co-stars so it is probably unsurprising that Jake Gyllenhaal and Rachel McAdams are rumoured to be seeing each other.

Before Gyllenhaal and McAdams saw boxer Miguel Cotto fight Sergio Martinez, they stayed very close at an HBO Sports party.

Love story ... Actress Rachel McAdams has had a number of celebrity boyfriends.

Romance buzz began when the pair stepped out last week for dinner in Pittsburgh, where they’re shooting a boxing movie, Southpaw, with Lupita Nyong’o and Forest Whitaker.

On Saturday in New York, spies said Gyllenhaal and McAdams appeared together at Lugo Caffe before the bout.

“They arrived together and sat next to each other,” a spy told the New York Post, adding the actors were “in deep conversation.” They stayed for an hour at the packed party and “looked happy and very friendly.”

Former flame ... Reese Witherspoon and Jake Gyllenhaal dated for two years.

Gyllenhaal wore a casual black baseball cap and jeans while McAdams went with a little back dress, and they headed over to the fight together.

Gyllenhaal of course dated Reese Witherspoon for two years after meeting on the set of the 2007 film Rendition. He has had a string of celebrity girlfriends including Taylor Swift and Sports Illustrated model Alyssa Miller.

McAdams dated Ryan Gosling, her co-star in the movie The Notebook, as well as Masters of Sex star Martin Sheen.

Love on and off screen ... Actors Ryan Gosling and Rachel McAdams dated for three years.

Some sources says Gyllenhaal and McAdams are just friendly co-stars doing research for their film in which Gyllenhaal plays a pugilist.