He and long-time writing partner Lowell Ganz wrote numerous high-profile films including Splash (1984), Parenthood (1989), City Slickers (1991), and A League of Their Own (1992).
[citation needed] In the 90-minute interview with producer Michael De Luca, they discussed their 40-year partnership as it evolved from television to feature films.
[1] As a result of that connection, they were offered their first big break, the movie Night Shift, by series star Ron Howard and his friend, producer Brian Grazer.
[2] The writing duo later teamed up again with Howard on Splash, for which Mandel, Ganz, and Bruce Jay Friedman won the National Society of Film Critics Award for Best Screenplay.
[3] The Online Archive of California houses the Lowell Ganz & Babaloo Mandel Collection of material related to their writing careers.