Blake Lively, Leonardo DiCaprio split?

Blake Lively and Leonardo DiCaprio have split, it has been reported.

The couple, who were first linked romantically in May after attending the Cannes Film Festival, have ended their relationship after five months of dating, People claims.

"It's amicable. They're friends," a source told the website of the apparent break-up.

The two were previously rumoured to have split in July. However, the pair were spotted biking in New York City shortly after the split reports.

At the end of August, Lively celebrated her birthday with DiCaprio, after flying to Australia, where the Titanic star is currently shooting The Great Gatsby.

The insider claimed that long distance and the pair's various work commitments were the cause of the break-up.

Lively has since been seen enjoying sushi with Green Lantern co-star Ryan Reynolds in Boston, according to the Boston Herald.

Watch the trailer for Leonardo DiCaprio's J Edgar below: