As Mugglenet reported previously,The Grand Opening of Harry Potter: The Exhibition occured on the 1st of June in Singapore. MGET also reported that James and Oliver Phelps would be in attendance.
Snitchseeker now have some nice photos of the twins, including the one left, at the event.
Mugglenet were in attendance via a lucky fan and their report can be read here, and a quote is below:
In particular, they spoke about the Weasleys’ Wizarding Wheezes’ products, which were realistic packages rather than just empty boxes. These tiny ‘blink-and-you-miss-it’ details are, indeed, the very things that comprise Harry Potter: The Exhibition.
The exhibition is now open to the public at the ArtScience Museum,Singapore.