She is the sultry Latino screen siren blessed with smoldering looks and dangerous curves and he is the Hollywood heartthrob who makes women weak at the knees. Ryan Gosling and Eva Mendes got close on the set of "The Place Beyond the Pines" last month and now they have been spotted spending time some together off-screen as well.

A source tells US Weekly magazine that the two have been friends for a long time and that there is always been this strong chemistry between them. The pair has been working together on the New York set of their new movie "The Place Beyond The Pines," in which the two portray the role of a husband and wife.

It appears that this could be one of the hottest pairings in Hollywood as they take their on-screen romance to real life. In a clear sign that they are now more than just colleagues, they spent a romantic day at Disneyland together over the weekend. Onlookers immediately spotted the couple who had a blast enjoying rides such as Toy Story, the California Screamin' Rollercoaster, the little Mermaid Adventure and the Ferris wheel.

US Weekly reported that the 37 year-old "Hitch" actress was seen affectionately putting her arms around the handsome 30-year-old "Notebook" star and kissing him. They tried to remain incognito by dressing down in casual clothes and baseball caps. According to an onlooker, the actress even doted on her new leading man while the couple dined on junk food, cotton candy and corn on the cob.

Sources said that it was not unlikely that the Eva and Ryan may develop something more than friendship, which deepened in last month's filming of their new movie, "The Place Beyond The Pines", shot on location in Schenectady, New York. The Derek Cianfrance-directed film, which will not be released until 2013, is a story about a motorcyclist stuntman portrayed by Gosling who considers turning to crime in order to provide for his wife and child. However, his actions put him on a collision course with policeman-turned-politician Avery Cross, who will be played by Bradley Cooper.