How many movies have Colin Jamison and Jan Jamison collaborated on?

They have worked on 13 movies together! Their first movie together was Goodbye, Mr. Chips (1969) while their highest rated movie together was Indiana Jones and the Temple of Doom (1984). They have not worked together since Lara Croft: Tomb Raider - The Cradle of Life (2003). They are most known for their adventure films together.