Jennifer Lawrence, Nicholas Hoult Dating? Pair Spends Time on Set in Montreal

Jennifer Lawrence and Nicholas Hoult are reportedly back together after having broken up following a two-year relationship in January.

Sources indicate that the two rekindled the romance while shooting "X-Men: Days of Future Past," given the two play mutants who develop a strong friendship on-screen.

"They started the shoot in April as friends, and then one day they just started kissing," a source close to the couple told Us magazine. "All her old feelings came rushing back. Now they're fully back on."

Lawrence, 22, lives in L.A. and Hoult, 23, lives in the U.K. with the demise of their relationship being blamed in part of the long distance between the two actors. Lawrence and Hoult had initially started seeing each other after meeting on the set of "X-Men: First Class" in 2010.

While the pair have been on location they have been spotted eating lunch together and spending time with one another outside of filming.

Hoult also joined the "Silver Linings Playbook" Oscar winner and her family on a stroll around Montreal on June 2.

"My boyfriend is honestly my best friend, and hopefully I'm his best friend too," she told Elle a month before the breakup in December. "He's my favorite person to be around, and he makes me laugh harder than anybody."

"He has absolutely no idea how good-looking he is," she gushed to Vogue U.K. previously. "I think a lot of women hate me for that."

Fans will be eager to see how there off-camera romance transfers to the big screen, but will have to be patient given that "X-Men: Days of Future Past" will not open until May 23, 2014.