Jonah Hill and Ali Hoffman on January 29, 2012 in Los Angeles, California. Credit: Angela Weiss/Getty Images

Jonah Hill and Ali Hoffman have put an end to their nine-month long romance.

Dating since January, the Moneyball star, 28, and Hoffman, 24 -- whose dad is Hollywood legend Dustin Hoffman -- have called it quits, a source confirms to Us Weekly.

Earlier this year, Page Six reported that Hill had been close to the Hoffman family for quite some time before becoming romantically involved with Ali (whose mother, Lisa, is Dustin's second wife). Ali's father helped discover Hill when he was still in high school; Dustin helped him get his first big break with his role in the film I Heart Huckabees (Hill reportedly attended Crossroads High School in Santa Monica with Dustin's kids, including Ali.). Hill was even "in Hawaii over the holidays with the Hoffman clan," a source told the paper at the time.

Prior to stepping out with Hoffman, Hill dated high school pal Jordan Klein for several years; the pair ended their longterm relationship in October 2011.