The Rum Diary co-stars Johnny Depp and Amber Heard are reportedly dating again, after they were seen holding hands backstage at the Rolling Stones concert in Los Angeles on Sunday night.

The two met on the set of The Rum Diary and were thought to have been dating last year, after Depp's split from Vanessa Paradis. The Pirates of the Caribbean actor and Paradis, who were together for 14 years, have two children.

Heard is openly bisexual and split with photographer Tasya van Ree after a three-year relationship. Heard reportedly began dating Depp shortly afterwards. The actor bought Heard her own horse last year after they began dating. However, OK! magazine reported that Heard broke up with Depp at the time because she felt she was receiving too much media attention.

"She told Johnny she needed some space," a source told the magazine.

Some responses from Twitter fans regarding the couple's apparent renewed relationship were positive, with posts like:

But some are not as pleased, posting: