Yep, that just happened.
I went to see the play, Our Boys with Weronika in Covent Garden last night and Matthew plays one of the characters on it. If you don`t now him, he was Neville Longbottom on Harry Potter.
The play itself is the funniest thing I`ve ever seen at theatre so if you are in London you definitely have to see it. It`s on until December 15th. The actors are all great and professional. Here is an example: There was a part, where the boys held a tea/birthday/beer party at their hospital room (they`re soldiers recovering from injuries) and the cup of tea fall into one of the boys` lap from the armrest of the wheelchair. I believed it was part of the act since it`s a comedy and everyone was laughing but Weronika later told me it was a real accident (she saw this play earlier).