Efron, Pattinson ‘click’

Zac Efron and Robert Pattinson “seem to really click”.

The Hollywood studs partied together Tuesday night at West Hollywood club Bootsy Bellows.

Apparently the actors are developing quite a tight bond as they really respect each other’s viewpoints on life in the entertainment industry.

"Zac has gotten to know Rob more and more through mutual friends and they enjoy talking about what they're working on in the future," a source told Us Weekly magazine. "Zac really likes the movies that Rob is doing right now and Rob has so many questions about growing up in Hollywood like Zac did. They seem to really click."

Zac’s new flame Michelle Rodriguez is said to have joined Robert and her man at Bootsy Bellows for a brief time.

And at the end of the night, the sizzling couple reportedly left for her house.

The 26-year-old actor and 36-year-old actress have sparked romance rumours after they were spotted kissing and flirting while in Sardinia recently. They have apparently known each other since 2011, and as they have both spent time in rehab they understand where the other is coming from.

"They're so comfortable with each other - that's why it started," an insider told British magazine Heat recently. "They've bonded over the problems they've had in the past and were there for each other when they had break-ups. Michelle gets what Zac's still going through and doesn't judge him. They also both love motorcycles, hanging out and being sporty - it just works. He doesn't care that she's bisexual. If anything, he loves how free she is."