Microsoft billionaire Paul Allen threw a fabulous party on his superyacht during the Cannes Film Festival

It may still be spring, but for A-List attendees at the star-studded Cannes Film Festival in France, last night was actually a midsummer night's dream.

Paul Allen, Microsoft co-founder and current-day philanthropist, is a regular at the Cannes Film Festival. One of the most hotly anticipated parties each year is the exclusive yacht party he holds on his 414-foot superyacht, "Octopus". Each year has a different elaborate theme: last year, it was Bollywood. This time, it was a riff on Shakespeare's classic comedy of romantic errors.

Lucky guests reportedly included Mick Jagger, Mischa Barton, and Chloe Sevigny, who got to spend the evening sipping champagne aboard Octopus. They were even treated to a live rendition of a Led Zeppelin song that was performed by Allen himself.

Step inside the enchanted garden, below.