The critics agreed with me on this one: a complete waste of time
The trailer (below) had some good laughs, so you should save some money and just watch the trailer, because those were the only funny moments in the entire film.
Some choice comments from critics:
It’s so painfully unfunny we’re not sure it can legally be called a comedy.
“Holmes & Watson” is one of those movies that goes beyond unfunny and into a comedy-cubist zone, where jokes are no longer recognizable and laughter is philosophically impossible.