How many film versions of Batman have there been?

There were four film versions of Batman in 1989. There was Batman, a 15-chapter Columbia serial in 1943, with Lewis Wilson in the title role.

Then came Batman and Robin, another Columbia serial in 1949, starring Robert Lowery.

In 1966, 20th Century-Fox released a feature film called Batman based on the television series and starring Adam West.

In 1989, Warner Brothers released Batman, starring Michael Keaton.