Which 2005 film directed by Christopher Nolan starred Christian Bale as Batman?

The 2005 Christopher Nolan film starring Christian Bale as Batman was Batman Begins.

Batman Begins was directed by Christopher Nolan and co-written by Nolan and David S. Goyer. It follows Bruce Wayne from the trauma of witnessing his parents' murder through his training abroad and eventual return to Gotham City, where he adopts the Batman identity. Christian Bale played both Bruce Wayne and Batman.

The film was designed as a grounded reboot of the Batman film series, separate from the more stylized continuity of earlier movies such as Batman and Robin. Its supporting cast included Michael Caine as Alfred, Gary Oldman as Jim Gordon, Liam Neeson as Henri Ducard, and Cillian Murphy as Dr. Jonathan Crane, also known as Scarecrow.

Batman Begins was released in June 2005 and became the first installment in Nolan's trilogy. It was followed by The Dark Knight in 2008 and The Dark Knight Rises in 2012. The Dark Knight Rises is therefore a frequent mix-up, but it was a later sequel rather than the film that introduced Bale's Batman.