Well what i wrote in the AOS paper last year was that the film shows how physical journeys bring the travellers closer together, ie. Charlie's emotional journey of discovery/change leads to a better relationship with Ray.
Using this idea you can compare Rain Man with Crossing the Red Sea, and contrast it with Feliks, = better synthesis/linking. I didn't link it to the stimulus but you can do that too if you have some ideas there..
BTW rather than discuss the concepts of the journey which appear in each individual text, the markers like it better if you have a main argument and use your texts to support this idea, rather than writing about each one in blocks, you know? eg. physical journey -> emotional one.
Hope that helps a bit..