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“Leonardo & Cameron FLIRT ALERT!” reads a headline from Star, which goes on to claim that Leonardo DiCaprio and Cameron Diaz are “quietly having a fun fling.”

The mag says DiCaprio “set off major sparks” with Diaz at the LACMA Art + Film Gala in L.A. on November 5, prompting witnesses at the museum event to suspect there was something romantic going on between them.

According to one so-called “source” at the party, “Every time Leo was pulled away to talk to someone else, he’d keep his eye on her.”

“Cam even blew him a kiss!” adds the “insider.”

How scandalous!

But don’t expect these two to come out as a couple anytime soon, warns Star, which explains the former Gangs of New York co-stars have a “no strings attached” type of arrangement.

OR…

There’s just NOTHING going on between them.

RELATED – Cameron Diaz and Diddy “Hooking Up”?

A source close to the J. Edgar star assures Gossip Cop that DiCaprio and Diaz are just friends, noting, “Leo talks to a friend and Star writes something is going on… the magazine has actually fallen below the National Enquirer on the supermarket rack.”

Oh, snap!

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Like a veal parmigiana that comes back to haunt you, so too have casting rumors for Martin Scorsese’s planned biopic on Frank Sinatra.

According to reports, “Leonardo DiCaprio, George Clooney and Johnny Depp are slugging it out to play Frank Sinatra.” The stories basically all claim that Scorsese is pulling for DiCaprio, who he’s worked on a number of films, including “The Departed” and “Gangs of New York,” but the studio wants Depp, while Tina Sinatra, daughter of the legendary crooner, would like Clooney to play the part of Ol’ Bue Eyes.

So who’s it going to be?

It’s “way premature,” the director’s rep tells Gossip Cop, adding rather significantly, “Marty isn’t even thinking about casting yet. They don’t even have a draft of a script.”

So for the time being, fuggedaboutit… and when there’s news, Gossip Cop will let you know.

For the most accurate celebrity news reporting, check out GossipCop.com and follow us on Twitter – @GossipCop