What movie, filmed by Jeremiah S. Chechik, did John Mark Galecki appear in in 1989?
Johnny Galecki:  Galecki also appeared in the films "National Lampoon's Christmas Vacation" (1989), "Prancer" (1989), "Suicide Kings" (1997), "I Know What You Did Last Summer" (1997), "Bookies" (2003), and "In Time" (2011). National Lampoon's Christmas Vacation: National Lampoon's Christmas Vacation is a 1989 American Christmas comedy film directed by Jeremiah S. Chechik.
National Lampoon's Christmas Vacation