London, Feb 23 (IANS) Hollywood star Angelina Jolie has sparked rumours of undergoing surgery after she was snapped sporting strange marks on her neck while filming her latest movie in Venice.

The 'Tomb Raider' star appeared to have developed two large tucks of skin underneath her right ear. The skin also appeared red and sore.

It is being speculated that the 34-year-old may have had a 'ribbon lift' - the latest Hollywood plastic surgery craze, with the 4,000 pounds procedure involving having a small cut made near the earlobe so a thread of absorbable ribbon can be implanted, reports dailymail.co.uk.

The procedure heals within 12 weeks and makes the skin of the neck appear tighter.

An onlooker in Venice said: 'She looked very, very odd.

'She is usually flawless but the marks are very peculiar. The two prongs of skin have been stretched off her face towards her neck,' the onlooker added.