Sherlock Holmes is a 2009 film adaptation of Conan Doyle's fictional character of the same name. The film was directed by Guy Ritchie.Robert Downey, Jr, Jude Law respectively portray Sherlock Holmes and Dr. Watson.

In 1891 London, Sherlock Holmes (Robert Downey, Jr.) and Dr. John Watson (Jude Law) race to prevent a human sacrifice ritual conducted by Lord Blackwood (Mark Strong). Holmes and Watson stop the sacrifice just in time and neutralize Lord Blackwood.

Three days after Blackwood's execution, his tomb is found shattered, from the inside out, and an eyewitness reports seeing Blackwood walking away. Holmes and Watson find Blackwood's coffin contains the body of a red haired midget. Holmes follows clues from a pocket watch on the body to the midget's home, where they discover several chemistry experiments.

With Watson and Adler (Rachel McAdams), Holmes takes them to the sewers below Parliament where they find a machine that is operated by a remote trigger held by Blackwood that will release a cyanide derivative into the Parliament chambers. Holmes recounts that all of Blackwood's "mystical" acts (including faking his own death) were simply applications of science and trickery.

Adler explains about Professor Moriarty, and warns Holmes that Moriarty "is just as brilliant as he is, and infinitely more devious".

In the final scene, The police arrive to report a dead officer found near Blackwood's device, and Holmes deduces that fighting Blackwood was a diversion by Moriarty. Holmes accepts the case.

To talk about performances, Robert Downey Jr:He's great. Fun to watch, attractive, clever, he's the whole package. Bit old, but you will forget that with his tricks and charm.Jude law is also upto the mark and Rachel McAdams is soo cute. Dialogs are quick and superb. Background score is electrifying.The fight scenes, you will love them. Only bad thing is make-up.

This film is well worth a trip to the theater if you're looking for a fun ride that is easy to watch. It's not perfect but if you're looking to be entertained for a few hours without having to think or feel too much. I give 7.5 out of 10 for Guy Ritchie's Sherlock Holmes.