"Pirates of the Caribbean" 5 star Johnny Depp is slated to marry his fiancée Amber Heard after the announcement of their engagement early this year.

However, rumor has it that the 51-year-old Hollywood superstar is having cold feet and has chosen to postpone the wedding to his 28-year-old lady love according to Radar Online.

The reason behind this is reportedly because Depp is worried that his much younger fiancée would eventually leave him for a younger guy as what told by insiders of The National ENQUIRER.

"There's a real spark between Amber and James [Franco], and Johnny was jealous as hell when he saw pictures of themcuddling and giggling," an alleged close friend claimed.

"Although Amber insisted they were getting in character, Johnny's not so sure, especially with James' reputation as a skirtchaser," the source added.

Furthermore, Heard's desire of wanting to have kids added to the cause of Depp's wedding jitters.

"Amber also wants a baby, and Johnny keeps thinking about being 70 by the time their kid goes to college. Then Johnny sees Amber with guys her own age and wonders if he's doing the right thing," the insider claimed.

And to add insult to injury the "Pirates of the Caribbean 5" star's children are reportedly not happy to have Amber Heard as their stepmom.

"Johnny wants his kids to be front and center when he and Amber tie the knot, but it seems they just can't warm to her," source told Radar Online.

"Lily-Rose and Jack are very close to their mother (Vanessa Paradis) and they blame Amber for wrecking their family," the source claimed. "Vanessa has even told Johnny that Lily-Rose said she wouldn't feel comfortable as a bridesmaid."

Apparently Depp is "suggesting they push the wedding back until the middle of next year, at the earliest," a source told The ENQUIRER. "Amber's not happy about

having to wait to take the plunge - and it could spell doom for their relationship!"

Do you think "Pirates of the Caribbean 5" star Johnny Depp would ever tie-the-knot and wed his fiancée? Sound off in the comments section below Kpopstarz readers.