how many batman movies did george clooney make
None, but he has acted in "Batman & Robin".
Batman in film
Schumacher also directed the 1997 sequel "Batman & Robin", which starred George Clooney. 
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Batman in film [SEP] Introduction
Burton and Keaton returned for the 1992 sequel "Batman Returns", and in 1995, Joel Schumacher directed "Batman Forever" with Val Kilmer as Batman. Schumacher also directed the 1997 sequel "Batman & Robin", which starred George Clooney. "Batman Forever" and "Batman & Robin" were poorly received by both critics and fans, leading to the cancellation of "Batman Unchained". Following the cancellation of two further film proposals, the franchise was rebooted in 2005 with "Batman Begins", directed by Christopher Nolan and starring Christian Bale. Nolan returned to direct two further installments through the release of "The Dark Knight" in 2008 and "The Dark Knight Rises" in 2012, with Bale reprising his role in both films.