Have Morgan Freeman and Sandra Bullock ever appeared in a movie?

None yet -- but wait, there's always television!

Freeman and Bullock for Djibouti?
Morgan Freeman and Sandra Bullock could be starring in the Elmore Leonard adaptation Djibouti, the author has revealed.
Morgan Freeman could be starring in a new Elmore Leonard adaptation
Morgan Freeman and Sandra Bullock could be starring in the Elmore Leonard adaptation Djibouti, the author has revealed.
Veteran crime writer Leonard discussed the potential line-up at the launch of the second TV series of Justified, on which he is executive producer.
"Morgan Freeman likes it a lot, in fact I even thought of him as I was writing it," Leonard said.

http://movies.uk.msn.com/news/articles.aspx?cp-documentid=156909440

http://tinyurl.com/bullockfreeman

I do not see any appearances together in movies but they do show up getting awards at the Oscars every once in a while.