George and Amal Clooney have returned to Italy to celebrate her birthday with a three-day, star-studded party, it has been reported. The actor and his human rights lawyer wife are understood to have invited friends to their mansion on Lake Como. The party is a belated celebration of Mrs Clooney's 37th birthday in February, according to a source. Scroll down for video . Amal and George Clooney are understood to have invited friends to their Lake Como home for a belated celebration of her 37th birthday . Stella McCartney Sleeveless Marine Embroidery Dress . Get a similar style at Neiman Marcus . Visit site . By now we've all realized that Amal Clooney has a closet full of designer clothes for every day of the week. The British barrister cut a striking figure back in March when she attended an event with her husband, George Clooney, in this Stella McCartney dress. The sleeveless shift featured a see-through mesh design on both sides showing just a hint of skin but still keeping it classy. The form fitting silhouette highlighted Amal's slim physique. Unfortunately this style is all sold out, but you can get your hands on a similar option at Neiman Marcus by clicking right. As for alternatives, we've got plenty in the carousel below. We're especially smitten with the embroidered panels of the BCBG creation and the lace sleeves on the Reiss number. Keep the look simple with black heels and a box clutch and you'll score major style points. BCBGMAXAZRIA Eloisa Embroidered Trim Dress (now $238.80) Visit site . Sugarlips Blue Belle Embroidered Dress at Dillard's . Visit site . Reiss Cersei Lace Sleeve Shift Dress . Visit site . Sue Wong Sleeveless Embroidered Tulle Dress at Nordstrom . Visit site . Among celebrities expected to attend the exclusive event are Mr Clooney's Oceans 11 co-stars Matt Damon and Brad Pitt. The couple, who also have homes in Los Angeles and Berkshire, married in Venice in September. A source told The Times that strict security measures were in place around Villa Oleandra, the couple's lakeside home, ahead of the event. It comes after local Italian authorities imposed harsh rules to allow the stars more privacy. Earlier this month the mayor of Laglio - the exclusive community in which the house is set - increased fines to 500 euros for anyone caught loitering around the property. Strict security rules are in place ahead of the event, with local Italian authorities warning that anyone caught loitering outside the couple's home (above) will face fines of up to 500 euros . Among guests rumoured to have been invited to the party is Matt Damon (pictured at the Clooneys' wedding in September) and Brad Pitt with wife Angelina Jolie (right) Denying claims he had introduced 'a Clooney fine', Mayor Roberto Pozzi said the rules were designed to avoid 'dangerous situations' and ensure 'the circulation of boats in the lake'. Last summer a similar 'no go' order was issued to prevent paparazzi boats from lingering in the vicinity. Mr Clooney, 53, bought Villa Oleandra in 2002 for a reported 7.3million euros. He bought the adjacent Villa Margherita shortly afterwards. Alongside their Italian pile the couple own a sprawling Berkshire manor house. They bought The Mill House in Sonning in 2013 for a reported £10.5million. Mrs Clooney, who works for the London-based law practice Doughty Street Chambers, has recently taken on a lecturer post at New York's Columbia University. Her actor husband has been seen filming scenes on the streets of New York for his forthcoming film, Money Monster. In the film Mr Clooney plays Lee Gates, a financial TV personality whose insider tips have afforded him a reputation as the money guru of Wall Street. Mr and Mrs Clooney wed in September in Venice. They are pictured arriving at the palazzo Ca Farsetti to take part in a civil ceremony . Mrs Clooney has recently accepted a post at Columbia University in New York where she will lecture on human rights law. Meanwhile her husband has been seen filming scenes for his forthcoming film Money Monster on Wall Street .
George and Amal Clooney expected to host celebrity friends this weekend .
The couple invited guests to their Lake Como villa, according to a source .
Italian authorities imposed fines for anyone caught loitering around villa .
Mrs Clooney, a humans right lawyer, turned 37 at beginning of February .