Last night I watched the movie Operation Mincemeat on Netflix and I quite liked it and would recommend the movie. But before you take my recommendation know two things - I'm predisposed to like movies like this (I've rewatched Tinker, Tailor, Soldier, Spy several times). Secondly, I've long had the book Operation Mincemeat on my Amazon Wish List.
The movie had a fantastic cast but one thing I need to confess to is how distracted I was by how much Matthew Macfadyen with a mustache reminded me of a young Peter Sellers. Watch the trailer and tell me you don't see the resemblance too.