Conversation so far:
What charity work did Ian McKellen do?
McKellen appeared in a series of TV advertisements to support Age UK
Were the advertisements Ian McKellen did for Age UK a success?
Did Ian McKellen do any other charity work, besides the advertisements for Age UK?
McKellen umpired in March 2011 for a charity cricket match in New Zealand to support earthquake victims of the February 2011 Christchurch earthquake
Did Ian McKellen do any other charity work, besides the advertisements for Age UK and and the charity cricket match?
McKellen also has a history of supporting individual theatres
Where were the theaters that Ian McKellan supported located?
While in New Zealand filming The Hobbit in 2012, he announced a special New Zealand tour Shakespeare, Tolkien, and You!, with proceeds going to help save the Isaac Theatre Royal

Question: Was he involved in other projects?
Self-contained rewrite: Was Ian McKellen involved in other projects, besides his charity work?